also: おんゲー
noun
rhythm game; music game
Slang abbreviation of 音楽ゲーム, used in gaming communities. Refers to video games where players press buttons or tap in time with music.
See also: 音楽ゲーム
最近、スマホで音ゲーにハマってる。
Lately I've been hooked on rhythm games on my phone.
あの音ゲーは曲数が多くて楽しい。
That rhythm game has a lot of songs and is fun.
Full, formal term for rhythm/music games. 音ゲー is the casual abbreviation used in conversation and online.
Abbreviation of 音楽ゲーム (ongaku gēmu, 'music game'), with 音 (on/oto, 'sound') + ゲー (gē), a shortening of ゲーム (gēmu, 'game').