noun
medal game; token-based arcade game
Wasei-eigo for amusement arcade games where players insert tokens (medals) to play and can win more tokens. Common in Japanese game centers.
wasei-eigo (Japanese-coined English), from medal game
ゲームセンターでメダルゲームを楽しんだ。
I enjoyed playing medal games at the arcade.
このメダルゲームは大量のメダルが獲得できる。
You can win a lot of tokens in this medal game.