/room #pewpewin the chatbar. This minigame is not to be confused with Death Match, although it's game features is alike.
Unlike the Death Match minigame, mice have 3 lives instead of one, and instead of firing cannons by pressing Space, mice fires random objects such as balloons that shoots at top speed, iced mice, large wooden crates, small boxes, cannons, planks etc.
Every time the first counter drops to zero, everyone, no matter how many lives you have, will drop to 1. Which means, if you die, you will not spawn until the next round.
The objective is to kill all mice and survive. When all mice is killed, cheese will be awarded automatically and win. Though it doesn't reward exp.