The Arcade Glossary - Speak Fluent Coin-Op
Arcades invented their own dialect: a mix of hardware slang, scoreboard ritual and programmer jargon that leaked into every game since. When a Maze Muncher guide mentions hitboxes, or a Block Fall player brags about their kill screen run, this page is the translator.
All 38 entries below are written for players, not professors - One plain-language sentence or two, with the history kept only where it's genuinely fun. Every term links to a full page with the story, the strategy and the machines where you can see it in action. Terms like seed matter directly on this site: they're the machinery behind our daily challenge and the reason those scoreboards are fair.
All 38 Terms, A to Z
How to read this page
- Skim the cards below for the one-line definition.
- Click any term for the full story: history, a usage example, and the machines where it happens.
- Follow the trails - every term links its related ideas, so one click becomes a rabbit hole.
- Want the backstories? The game histories shelf covers every classic these terms come from.
- 1UP
- An extra life. On old cabinets the phrase also marked player one's score - 'your turn is up.' Read more →
- Attract mode
- The looping demo an idle cabinet plays to lure passers-by into inserting a coin. Read more →
- Boss
- A larger, tougher enemy that guards the end of a stage or wave. Read more →
- Combo
- A chain of successful actions scored as one multiplied reward - Kills, clears or catches without a miss. Read more →
- Cooldown
- The forced wait before you can repeat an action, like firing another shot or launching another missile. Read more →
- Difficulty curve
- How fast a game gets harder. Arcade games favor smooth, relentless ramps over sudden walls. Read more →
- Endless / survival
- A mode with no final level - The game only ends when you fall, crash or get caught. Read more →
- Extra life
- A bonus chance earned at score milestones. Classic cabinets granted one around 10,000 points. Read more →
- Frame
- One drawn image on screen. Browser games target 60 frames per second for arcade-smooth motion. Read more →
- Ghosting
- Following the exact path of a previous run or of your own tail - The safest route in grid games. Read more →
- High score
- The best score ever recorded on a machine. The three-letter name entry next to it is sacred arcade ritual. Read more →
- Hitbox
- The invisible shape the game uses for collisions. It is often slightly smaller than the sprite - That near-miss really did miss. Read more →
- Hyperspace
- A panic button that teleports your ship to a random spot. Sometimes it saves you; sometimes it lands you on a rock. Read more →
- Invincibility frames
- A brief window after being hit when you can't be hit again, letting you escape a pile-up. Read more →
- Kill screen
- The level where an old game's code breaks - Like Pac-Man's famous garbled level 256. Read more →
- Lane
- One fixed track of movement in games like our retro racer or freeway crossings. Read more →
- Lives
- How many attempts a run gives you before the final game over. Read more →
- Pixel-perfect
- A jump, dodge or drop that succeeds by a single pixel of clearance. Read more →
- Power-up
- A pickup that temporarily upgrades you - Bigger paddle, faster shots, ghost-eating pellets. Read more →
- PRNG / seed
- The pseudo-random number generator behind a run. The same seed replays the same layout - The engine of our daily challenge. Read more →
- Rubber-banding
- Difficulty that adapts to how well you're doing, keeping the game tense instead of impossible. Read more →
- Score multiplier
- A temporary boost that scales every point you earn - The reason risky play pays. Read more →
- Speedrun
- Finishing a game or reaching a target as fast as possible, rather than scoring high. Read more →
- Sprite
- A 2D image moved around the screen - The snake segments, aliens and frogs of this world. Read more →
- Twitch gameplay
- Play that relies on instant reaction rather than planning. Runners are pure twitch. Read more →
- Wave
- One complete formation of enemies. Clearing a wave brings a harder one. Read more →
- 1CC
- A one-credit clear: finishing an arcade game on a single coin, no continues. Read more →
- Bullet hell
- A shooter genre that fills the screen with slow, dense bullet patterns you weave through. Read more →
- Input lag
- The delay between pressing a button and the game responding on screen. Read more →
- Coin-op
- Short for coin-operated: the arcade machines that ran on quarters and tokens. Read more →
- Screen wrap
- Exiting one edge of the screen and reappearing on the opposite side. Read more →
- Extend
- Arcade slang for an extra life awarded at a score milestone. Read more →
- No-miss
- Clearing a stage or a full game without losing a single life. Read more →
- Pattern play
- Beating a game by memorizing its fixed sequences instead of reacting to them. Read more →
- Cabinet
- The physical arcade machine: screen, controls, art and coin box in one box. Read more →
- Redemption game
- Arcade games that pay out tickets or prizes instead of just points. Read more →
- Cocktail cabinet
- A table-style arcade machine you play sitting down, screen facing up. Read more →
- TAS
- A tool-assisted speedrun: frame-perfect play built with emulator tools, not live hands. Read more →
Put the Vocabulary to Work
Reading about invincibility frames is one thing; abusing them in Asteroids is another. Pick any machine from the main floor and its guide will use exactly the language you just learned - No translation required.