* In Pokémon, moves like Hypnosis, Sleep Powder, and Yawn can put your opponent to sleep.
* In Super Smash Bros., characters like Kirby and Jigglypuff can put opponents to sleep with their special attacks.
* In board games like Chess, certain combinations of moves can force your opponent to checkmate, which is essentially a "game over" situation that puts their King in check and forces them to lose.
Can you tell me what kind of game you're thinking of? I can give you a more specific answer then! 😄