罰 punishment

I'll have to punish BATSU maru for being a naughty penguin!

If someone says something bad, catch them with a net and punish them with a sword!

penalty game. ★★☆☆☆
罰 (punishment) + ム () = 罰ゲーム (penalty game.)

a truth-or-dare kind of "penalty game."

a fine ★☆☆☆☆
罰 (punishment) + 金 (gold) = 罰金 (a fine)