Batsu Game
Penalty Game
noun
A penalty game (ゲーム) is a fun kind of game you see on Japanese television a lot. When you mess up, you are punished. Usually it hurts. You can call this a batsu game or a penalty game. Don't call it anything else, though, or you know what happens...
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
この罰ゲームについて、がっかりもしてるんだけど、ワクワクしてもいるんだよね。
I’m kind of disappointed about this penalty game, but I’m also a little excited.
罰ゲームで、一週間毎日八時間寝ることになりました。
As punishment from the batsu game, I had to sleep eight hours every night for a week.
今だから言えるけど、あの時お前に告白したの、ただの罰ゲームだったんだよ。
I can tell you this now, but back when I confessed my feelings for you, it was only because of a batsu game.