Those Scarfy enemies from Kirby are freaky!

They're all smiley and cutesy at first and in most games, they won't even attack you until you try to inhale them. After which, they get pissed and transform into straight nightmare fuel, aggressively pursuing the player with its snapping jaws and can only be dispatched by hitting them with a projectile! Even so, upon killing them, they explode, which can still damage the player if they're too close.