While it's not a specific type of machine, it's a general term for games played in an arcade that typically require coins or tokens to play.
Here are some examples of specific types of arcade machines:
* Pinball machines: Mechanical games with a flipper-controlled ball.
* Video games: Games played on a screen with a variety of genres, like racing, fighting, or shooting.
* Claw machines: Games where you use a claw to try to grab prizes.
* Air hockey: A game where two players use paddles to hit a puck.
* Skee-ball: A game where you roll balls down a ramp to earn points.
Let me know if you're thinking of a specific type of arcade game, and I can give you more information!