Pachislot Glossary: Japanese Slot Terms in English

Pachislot (パチスロ)

Japanese reel-based gaming machines found in pachinko halls. Many use player-controlled reel stops, internal states, settings, bonuses and AT/ART systems.

Smart Pachislot (スマスロ)

A newer pachislot format that manages medals or credits internally instead of requiring physical medals during normal play.

A-Type (Aタイプ)

A machine type focused mainly on real bonus games rather than AT as the primary payout method.

AT — Assist Time (AT)

A state that supplies reel-stop or navigation assistance and usually serves as the main medal-increase mode on modern AT machines.

Machine example: L Tokyo Ghoul

In L Tokyo Ghoul, successful CZ routes or direct-entry routes can lead to the main AT, 東京喰種咬 (Tokyo Ghoul Bites). During AT, follow the displayed reel-stop order and any symbol-aiming instructions. Battles and reward features are parts of that machine’s AT flow; BITES (バイツ) is a separate add-on feature, rather than another name for every AT screen.

Common misunderstandings

• AT does not mean automatic play. You still operate the lever and stop buttons and follow the machine’s navigation.
• Entering AT does not guarantee a profitable session. Coins gained during AT must be considered alongside earlier spending and any later play.
• Net increase is an average within the payout state. It is not a fixed payment on every game or a return on all games played. See net increase and the exact machine guide.

Upper AT (上位AT)

A stronger AT route above the machine’s standard AT, often with a higher continuation rate, faster net increase, stronger reward structure or a combination of these. Exact entry conditions are machine-specific.

ART — Assist Replay Time (ART)

A system combining assist navigation with a replay-focused state. ART often works together with real bonuses.

CZ — Chance Zone (チャンスゾーン)

A limited opportunity or challenge that can lead to a bonus, AT, ART or another major state.

Machine example: L Tokyo Ghoul

L Tokyo Ghoul has normal-play CZs including REMINISCENCE (レミニセンス) and Big Eater Rize (大喰いの利世). They are opportunities to reach AT, with different success expectations and role-dependent outcomes. Check the machine guide for each CZ’s rules and the result it awards.

Common misunderstandings

• CZ entry and AT entry are different events. Reaching an ordinary CZ gives an opportunity; it does not by itself mean AT has already been won.
• CZ occurrence rate and CZ success rate have different denominators. One describes how often the CZ is reached; the other describes success after entering that CZ.
• A published success expectation is not a schedule. A hypothetical 50% success figure does not mean every second attempt succeeds. Rules, outcomes and guarantees depend on the exact machine and situation.

ST (ST)

A machine-specific short continuation or payout state that repeatedly gives chances to extend or re-enter rewards. The exact meaning and rules differ by title, so the machine page takes priority over this general definition.

Bonus (ボーナス)

A reward state or bonus game. On A-Type machines this may be a real bonus; on AT machines the word can also be used for AT-linked reward segments.

BIG Bonus / BB (ビッグボーナス)

A larger bonus category commonly abbreviated BB. Exact coin gain and internal treatment depend on the machine.

REG Bonus / RB (レギュラーボーナス)

A smaller regular bonus category commonly abbreviated RB or REG. On many Juggler-type machines its setting difference is especially useful for long-run setting analysis.

Pure / Real Bonus (純ボーナス・リアルボーナス)

A bonus produced by an actual bonus flag rather than being only an AT reward presentation. A-Type and A+ART machines commonly use this type of bonus.

Internal Lottery / Chusen (内部抽選・抽せん)

Internal lottery can mean two different things in pachislot discussions. The strictly defined role lottery (役抽選) determines which small role, replay or bonus-related flag is eligible in a game. A separate, machine-specific feature lottery may decide a CZ/AT entry, mode transition, continuation, stock or other reward. Do not assume both draws happen at the same moment.

When is the draw made?

• Role lottery: Japanese technical regulations require the role draw to happen after the reel-start mechanism is operated and before all reels reach steady rotation. On an ordinary pachislot machine, this is usually called the lever-on draw. Stopping the reels at the right time cannot change a losing role draw into a winning one.
• Feature or reward lottery: The trigger is specific to the machine, game state and feature. Some are decided at lever-on; others are decided when the player releases the third (last-pressed) stop button. Releasing the button is different from pressing it. A late animation or lamp announcement by itself does not prove that the lottery also ran late.

Manufacturer-confirmed example: In Sammy’s Pachislot Eureka Seven 3, the developer’s official Q&A (No. 4, December 27, 2019) says the SP BATTLE win/loss draw occurs when the final stop button is released on the last game of the final JAC, using the probability displayed on the sub-screen at that moment. This is a battle-result lottery, not a new draw for the game’s small-role flag. See Sammy’s original developer Q&A.

Another model-specific example is Smart Pachislot Hokuto no Ken: published analysis identifies normal-play mode transitions, the battle continuation decision during JAC-IN and certain end-of-AT decisions as third-stop-release events, while some other feature lotteries take place at lever-on. Consult the machine-specific draw-timing table. These examples must not be generalized to every title.

What does 1/N mean? Check the denominator

• Per-game probability: A listed 1/100 per eligible game corresponds to a 1% chance on each eligible game under the stated conditions. Across 3,000 comparable games the expected count is 30, not a promise of exactly 30 occurrences or one hit every 100 games.
• Per-trigger conditional probability: A 25% success rate after an eligible cherry means one success chance for each cherry meeting the stated conditions, not a 25% chance on every game. In 40 comparable eligible trigger observations, the expected count would be 10 if the 25% chance applies to each.
• Per-entry and state-specific probabilities: A CZ success percentage uses eligible CZ attempts as its denominator. A Normal-state rate must not be applied to High-state or AT games unless the machine’s source says it applies there too.
• Composite initial-hit figures: An overall bonus/AT initial-hit figure such as 1/300 may combine multiple routes, modes, game-count zones or ceilings. It does not necessarily mean a constant, independent 1-in-300 lottery on every game.

Reading rule: Before comparing observations with a published rate, identify the event counted in the numerator, the qualifying opportunities counted in the denominator, the game state, setting and any reset or ceiling rules. A displayed percentage is not proof of winning on a specific attempt. Do not use a reel-stop timing ritual or a third-stop hold to infer that the actual published lottery odds have improved.

References: Japanese technical regulations, Appendix 5 (reel-machine internal draw); Sammy Eureka Seven 3 developer Q&A No. 4; Hokuto no Ken published timing breakdown. Reviewed October 16, 2026.

Normal Play (通常時)

The ordinary state outside a major bonus, AT, ART or similar payout mode.

Game Count / G (ゲーム数)

The number of games or spins played. Japanese pachislot data commonly writes this as G, such as 100G or 3000G.

Cycle (周期)

A repeating progression unit used by some machines. Completing a cycle can create a CZ, bonus or AT opportunity, and some machines have a maximum-cycle ceiling.

Push-order Navigation (押し順ナビ)

An instruction showing the required order for stopping the reels. Following it is essential during many AT, ART, CZ and bonus states.

Reel Aiming / Meoshi (目押し)

Timing a reel-stop button press while using the rotating symbols as a visual or rhythmic reference, so the specified symbol is aimed at the required position. A procedure may specify the left, middle or right reel and the upper, middle or lower row; some targets are just above or below the visible reel window.

Reel aiming concerns which symbol and position to aim for. Push-order navigation concerns which reel to stop first, second and third. A machine can require both. The permitted aiming window and reel control depend on the model and current game state.

Accurate aiming does not let you create a bonus whenever you choose. Read the exact machine’s How to play section and cabinet instructions. Bita-oshi is a more precise form of reel aiming.

Skill Intervention / Gijutsu Kainyu (技術介入)

A machine feature or play procedure in which correctly performing a specified action can affect the result, such as collecting eligible small-role payouts, changing coins acquired during a bonus, or earning additional AT/ART games. The action, timing, eligible phase and reward are specific to the machine.

Many procedures use reel aiming, but skill intervention is not synonymous with bita-oshi. Some procedures allow a wider aiming window or a different stop procedure.

Manufacturer example: A-SLOT+ DISC UP ULTRAREMIX

Sammy’s official digital play guide distinguishes a bita-oshi challenge from an alternative with a two-symbol-position aiming window during BIG. Successful aiming can add Dance Zone games. Read each option’s own instructions and reward rules; this example is not a procedure for every machine.

Common misunderstandings

• Success does not guarantee a profitable session. A published payout rate may depend on specified play assumptions and successful procedures.
• Missing an optional skill challenge and violating a prohibited stop order are different events. Do not label every aiming miss a penalty; check the model’s rules.
• Use an easier or alternative procedure only when the manufacturer describes it for that exact situation. Continue to follow all navigation prompts.

One-symbol Precision Stop / Bita-oshi (ビタ押し)

A form of reel aiming that requires the button press at the specified symbol position with one-symbol precision. A koma (コマ) is one symbol position on a reel, not one game and not one video frame.

If the instruction specifies a particular symbol on the middle row of the middle reel, matching the symbol on another reel or row is not the same task. A symbol appearing in the desired final position does not by itself prove a successful bita-oshi if reel control has slid it there from a different press position.

Bita-oshi versus a two-koma aim

Bita-oshi has a one-symbol-position aiming requirement. A two-koma (2コマ) procedure allows a two-position window under its specified rules. It does not mean pressing two buttons or playing two games, and it is not necessarily one position early or late in either direction. Exact accepted positions must come from the machine’s instructions.

The term does not establish one universal timing window in milliseconds. For example, Sammy’s P-SPORTS competition-machine explanation grades precision within a single symbol position; that competition scoring system should not be applied to every hall machine.

Bita-oshi describes the required precision, while skill intervention describes how a procedure affects the machine’s result. Neither term guarantees a win or changes the hall-selected setting.

Color Aiming / Iro-meoshi (色目押し)

A form of reel aiming that uses a symbol’s color as a visual reference, such as distinguishing a red 7 from a blue 7 while the reel rotates. The term is also used for aiming the colored symbol specified by an on-screen payout navigation prompt.

Color-cued payout navigation

When a payout prompt specifies a color or symbol, aim that target on the instructed reel and also follow the displayed stop order. Following the numbers alone may be insufficient. Some models require aiming only on the first reel stopped; others have different procedures. Check the exact machine and current phase.

How to read this example: On this symbol-and-number stop-order prompt, the reel showing the red 7 symbol instead of “1” (the right reel) is the first stop. Aim for the indicated red 7 on that reel, then stop the left reel marked 2, followed by the middle reel marked 3. The indicated sequence is RIGHT → LEFT → MIDDLE. This explanation applies to this type of symbol-plus-order prompt; symbols do not universally mean “first stop” in every machine or game state. Check the machine’s own instructions.

Color aiming does not automatically mean bita-oshi. The accepted aiming window depends on the machine. A miss can reduce a small-role payout, but the treatment of bonus-end counters, rewards and prohibited stop orders must be checked separately. Do not assume every aiming miss is a penalty.

How machine pages use the Yes / No field

Color aiming for payouts covers a navigation prompt that specifies which colored symbol to aim for when collecting a payout, including an upper AT or ending phase. Yes means such a prompt has been confirmed; read the stated phase. No means this payout-navigation requirement is absent under the reviewed play instructions. Not confirmed means the checked material does not establish a reliable Yes or No.

This field excludes ordinary bonus-entry alignment, presentation-only nerae (狙え, “aim”) cut-ins, normal-play small-role targeting and a fixed skill-intervention adjustment. A No entry therefore does not mean that the machine never needs reel aiming.

Manufacturer example

Sammy’s official announcement for Moujuoh: Ouja no Houkou describes its AT as using color aiming. This is an example of the term, not a play procedure for a different Jyuoh model.

JAC / JAC Game (JAC・JACゲーム)

A named phase or subgame used inside a bonus or a bonus-like payout sequence. Its exact entry condition, duration and award depend on the machine. JAC-IN means entering that phase; it is not a general name for a new AT or a guaranteed jackpot.

On older real-bonus machines, a BIG could contain ordinary small-role games and JAC games, with machine-specific JAC-IN limits and ending conditions. A modern AT machine can also use the JAC name for a phase within its pseudo-bonus. The word alone therefore does not identify the legal bonus flag or the machine type.

Machine example: Fire Force 2

SANKYO’s official Adolla Burst explanation distinguishes Shinra, Sho and EXTRA JAC. It separately describes additions to Adolla Burst games and additions to the coin allowance during JAC. Those are different counters; do not exchange their units.

How to use the term

Read the exact machine’s bonus and How to play sections for the entry cue, stop order and ending condition. Do not apply an older machine’s JAC-IN avoidance or extension technique to a modern model. Follow current navigation; an optional indicator-aiming check can differ from an action required for collecting a payout.

Difference-coin Management / Samaisu Kanri (差枚数管理)

An AT or similar payout state managed using a remaining coin-difference allowance, rather than only a remaining-game counter. Under a simple net-difference rule, coins paid out minus coins wagered determine how much of the allowance has been used. The exact eligible roles, deductions, freezes and ending conditions are model-specific.

Conceptual example: if an active state starts with a 100-coin net allowance and every wager and payout is included, 30 coins wagered and 45 paid out use 15 coins of allowance, leaving 85 before additions. This example explains a simple counter; it is not a claim that every machine uses this implementation.

Manufacturer example and important exceptions

Sammy’s original Bakemonogatari AT guide describes a coin-managed AT with specific bell-based deduction rules. A displayed coin allowance therefore needs its own model’s decrement rules; it cannot always be reconstructed from a session graph.

Investment and return

The allowance concerns the active payout state, not your cash balance or the session’s profit. Investment before the state, lending conditions and prize-exchange conditions are separate. An allowance is also not gross coins paid out: a player can wager and receive coins repeatedly while the net counter changes.

Net increase is the average coin growth per active game; it does not make the remaining time exact. Payout rate concerns long-run return across its stated conditions, while the ceiling concerns a waiting condition and its reward. Read all three with the machine’s bonus/AT duration and add-on rules.

Do not confuse an AT’s remaining difference-coin allowance with an advantageous-section net-coin limit, a machine’s complete-stop limit, or the total acquired coins shown on an ending screen. These use different starting points and counting rules. No allowance guarantees a profitable session.

Penalty (ペナルティ)

A disadvantage or invalidation that can occur after an incorrect stop order or prohibited play procedure on certain machines. Modern machines vary widely, so always follow the machine-specific instructions.

Direct Hit (直撃)

An AT, ART or other major state reached directly from normal play without passing through the machine’s usual intermediate route such as a CZ or bonus.

Setting (設定)

An internal configuration selected by the hall, commonly numbered 1 through 6. Settings can change probabilities, payout rate and internal state transitions.

Machine example: My Juggler V

The My Juggler V guide separates BIG, REG, combined bonus probabilities and payout rates by setting. The manufacturer’s published figures differ across settings, so BIG and REG observations should be read against the exact model’s table. They are long-run reference figures, not a timetable for the next bonus.

Common misunderstandings

• The player does not select a setting as a difficulty option. The hall selects the internal configuration; the active setting is normally hidden.
• A short winning streak does not prove a high setting. A higher-setting machine can lose in a short session, and a lower-setting machine can win. A small sample cannot reliably identify the setting.
• A hint is different from a confirmation. A model-specific hint suggests a range or possibility; a confirmed pattern establishes only the setting or minimum that its rules specify. See setting hints and setting confirmation.
• Payout rate is not a guaranteed cash return. Read its play assumptions and the distinction between total wagers and cash inserted in payout rate.

Investment and interpretation

Why it matters: the setting is one of the most important factors affecting a machine’s long-run expected performance. It is not a visible difficulty level and it does not guarantee the result of a single session.

A setting is an internal configuration selected by the pachinko hall. Many Japanese pachislot machines use Settings 1 through 6, although the exact set of available settings can differ by title. Higher settings generally have a higher theoretical payout rate, but the individual lotteries affected by the setting are machine-specific and not every probability necessarily improves in the same way.

What a setting can change

• Bonus, AT or ART initial-hit probabilities.
• Small-role probabilities such as bells or cherries.
• CZ entry, direct-hit, mode, zone or state-transition lotteries.
• Continuation, reward or bonus-selection behavior on some machines.
• The machine’s overall theoretical payout rate.

The active setting is normally hidden from the player. Session data can be used to estimate it, while a machine-specific setting hint may narrow the range and a setting-confirmation pattern may prove a particular setting or minimum setting.

How to read setting data

Do not judge a setting from one number alone. Strong setting analysis combines several machine-specific indicators, such as bonus or AT initial hits, REG frequency where relevant, setting-difference small roles, CZ transitions, direct hits, and confirmed or suggestive screens. Short samples fluctuate heavily, and there is no universal game count that is sufficient for every machine.

Important: a higher setting raises long-run expectation; it does not remove variance. A Setting 6 machine can still lose over a short session, and a low-setting machine can produce a large short-term win. Current coin balance, one large AT, or a short winning streak is not enough to identify the setting.

Setting Hint (設定示唆)

An animation, voice, screen, result pattern or other cue that suggests a setting range without necessarily proving a specific setting.

Setting Confirmation (設定確定)

A presentation or condition that, when the machine-specific rule is satisfied, confirms a particular setting or a guaranteed minimum setting.

Payout Rate / Machine Rate (機械割・出率)

A long-run theoretical return percentage associated with a machine and setting under specified assumptions. It does not guarantee an individual session result.

Investment and interpretation

Why it matters: the payout rate expresses the machine’s long-run theoretical return relative to the total amount wagered under the stated play assumptions. It is one of the clearest numbers for comparing long-run expectation between settings, but it is not a promise of profit in one session.

Basic calculation

Payout rate (%) = Total medals paid out ÷ Total medals wagered × 100

Example: if 30,000 medals are wagered over the measurement period and the machine pays out 31,500 medals in total, the payout rate is 105.0%. The theoretical net difference over that turnover is +1,500 medals. If 30,000 medals are wagered and 29,100 are paid out, the rate is 97.0%, or -900 medals over that turnover.

The total wager is turnover, not the amount of cash first inserted. Medals can be won, used again for later games, and counted again as later wagers. For this reason, a 105% machine rate does not mean that an initial ¥10,000 automatically becomes ¥10,500.

How to read 100%

• Below 100%: theoretical long-run payout is lower than total wagered medals.
• 100%: theoretical medal payout equals total wagered medals under the stated assumptions.
• Above 100%: theoretical long-run payout is higher than total wagered medals under the stated assumptions.

Cash break-even can differ from medal break-even because Japanese halls may have different medal lending and prize-exchange conditions. A machine rate of 100% therefore does not always mean that a player’s final cash result will be exactly zero.

Expected net medals

Expected net medals ≈ Total medals wagered × (Payout rate ÷ 100 − 1)

For example, with 50,000 medals of total turnover, 110% corresponds to an expected difference of about +5,000 medals, while 97% corresponds to about -1,500 medals. This is a long-run expectation, not a prediction for the next session.

Published-rate assumptions

Published machine rates can depend on the stated play method. Correct reel aiming, navigation, bonus procedure or technical-intervention accuracy can affect the achievable result on some machines. Japanese Slot Guide therefore treats the machine page’s quoted rate together with its source assumptions; a value should not be silently converted between ordinary play and full technical play.

Important: payout rate alone does not tell you the bankroll required, the size of possible short-term losses, or how volatile the machine is. High-variance AT machines can run far above or below their theoretical rate for a long time. Read payout rate together with setting, initial-hit rate, ceiling conditions and the machine’s other investment-related specifications.

Initial Hit (初当たり)

The first occurrence of a target event such as a bonus, AT, ART or CZ from normal play.

Investment and interpretation

Why it matters: initial-hit probability shows how frequently a specified target event is reached from normal play and is often one of the main numbers used to estimate how quickly a machine may consume investment before entering a payout opportunity.

The target must always be identified. A quoted initial hit may refer to a bonus, AT, ART, CZ or another event, and these are not interchangeable. For example, a machine may have a relatively frequent bonus initial hit while its AT initial hit is much less frequent.

A notation such as 1/200 is a long-run frequency or aggregate rate, not a promise that one hit will occur every 200 games. Actual results can cluster or remain absent for much longer, and machines with zones, modes or state-dependent lotteries may not have the same effective chance on every individual game.

When comparing settings, a noticeably better initial-hit rate can be useful setting evidence, but it should be combined with other indicators and enough sample data. Initial-hit frequency by itself also does not determine profitability because the average reward after each hit can differ greatly between machines.

Net Increase (純増)

The approximate average number of medals or coins added per game while a payout mode such as AT is active.

Investment and interpretation

The approximate average number of medals gained per game while a payout mode such as AT or ART is active. A net increase of +5.0 medals/G means that the active payout state is designed to add about five medals per game on average over a sufficiently large sample.

Do not confuse net increase with payout rate. Net increase describes the speed at which medals grow while the payout mode is running. It does not show how often the mode starts, how much investment may be required before it starts, or whether the machine’s overall theoretical payout rate is above 100%.

A machine can therefore have a very high net increase but still require a large bankroll or have strong short-term volatility if its major payout states are difficult to enter. Use net increase together with initial-hit probability, setting, ceiling information and payout rate.

Continuation Rate (継続率)

The probability or design value describing how likely a repeating AT, ST or battle-style state is to continue. It is usually a long-run value rather than a guarantee for each set.

Small Role / Koyaku (小役)

A reel outcome or internal role such as bell, replay, cherry or watermelon. Some pay medals directly; others mainly affect internal lotteries.

Rare Role (レア役)

A less frequent small role that often has stronger influence on CZ entry, bonuses, AT progression or state changes.

Replay (リプレイ)

A result that allows another game without the usual additional credit or medal cost.

Bell (ベル)

A common small role that usually pays medals or is navigated during AT/ART.

Cherry (チェリー)

A common pachislot small-role and symbol family. Some machines use a single cherry category, while others divide it into weak, strong or machine-specific variants; its probability and effect must be read from the individual machine page.

Weak Cherry (弱チェリー)

A lower-strength cherry classification used by many machines. Its probability and effect are machine-specific.

Strong Cherry (強チェリー)

A stronger cherry classification that commonly has more influence on bonuses, CZ, AT or state changes than weak cherry.

Watermelon (スイカ)

A common pachislot symbol and small-role family. Some machines divide it into weak/strong or normal/special variants.

Chance Pattern (チャンス目)

A machine-defined chance role or stop pattern that often influences CZ, bonus, AT or internal-state lotteries.

Ceiling (天井)

A maximum game count, cycle count or similar condition after which a machine grants or strongly advances toward a specified benefit.

Machine example: separate CZ and AT ceilings

L Tokyo Ghoul has a normal-play CZ ceiling and a separate AT-interval ceiling. They track different progression and award different results: the former leads to a CZ opportunity, while the latter awards AT. Read the exact counters, conditions, reset behavior and any + α allowance in the machine guide rather than applying one game count to both.

Common misunderstandings

• A ceiling guarantees only the specified benefit under its conditions. A CZ or bonus-only ceiling must not be treated as an AT ceiling. Some machines have no game-count ceiling.
• A ceiling is not a cash-loss limit or a profit guarantee. An estimated yen amount is a planning calculation, not a fixed maximum spend or a promise that earlier spending will be recovered.
• The visible counter may not be the required counter. Displayed games, actual games, points, cycles and AT-interval counts can differ. A + α or premonition interval can extend play beyond the quoted threshold.
• Estimates require their stated assumptions. Check the starting state, lending rate and reset conditions, and follow the machine’s procedure and navigation without incurring a penalty.

Investment and interpretation

Why it matters: a ceiling is a maximum game count, cycle count, failure count, point condition or similar threshold after which the machine grants or strongly advances toward a specified benefit. It can materially affect the maximum expected investment from the current state.

The awarded benefit must be read carefully. Some machines have a bonus-only ceiling and no AT-interval ceiling, while others have separate ceilings for CZ, bonus, AT/ART, cycles or other progression systems. Reaching one ceiling must not be described as reaching another.

Machine pages on Japanese Slot Guide state the checked ceiling condition and, when it can be calculated responsibly, an estimated cash amount required to reach that checked ceiling from 0G. The estimate assumes normal play without penalties and uses the machine’s known coin-consumption information. It is a planning estimate rather than a guaranteed exact amount because replays, variable consumption, points, cycles, displayed-game counts, real-game counts and reset behavior can change the actual path.

Reset or setting-change conditions can shorten, clear or otherwise change a ceiling on some machines. Always use the machine-specific ceiling and reset section rather than applying a generic rule.

Reset / Setting Change (リセット・設定変更)

The machine state after a true setting change or initialization. Reset behavior can change ceilings, modes, cycles or starting conditions.

Zone (ゾーン)

A game-count or progression range where a machine has a stronger chance of entering a CZ, bonus, AT or other opportunity.

Mode (モード)

An internal state that changes probabilities, ceilings, zones, continuation expectations or other behavior. A machine can have several named modes.

High-probability State (高確)

An internal state where a specified lottery is more favorable than in the normal state. Which lottery is improved depends on the machine.

Pullback / Comeback Opportunity (引き戻し)

A period after a bonus or AT ends where the machine retains an elevated chance or special route to return to a major state.

Advantageous Section (有利区間)

A regulated/internal management concept used by many modern pachislot machines. Its practical behavior and relevance vary by generation and title.

Quit Timing (やめどき)

The point at which leaving a machine avoids giving up a known short-term benefit such as a pullback window, remaining points, cycle value or special mode.

Long Freeze (ロングフリーズ)

A rare special event that temporarily freezes normal operation and usually grants a strong machine-specific benefit.