Sprung from its imprisonment on Xbox, vaudevillian penitentiary platformer BattleBlock Theater has finally come to Steam. Its release is most definitely to be celebrated: BattleBlock matches shrewd puzzle construction with the furious pace and precise try-and-die challenge of Super Meat Boy, and yet fits all this in a difficulty curve so gentle you barely feel out of breath when you plant your flag at the top. The premise of each level – collect gems and reach the exit – may not be a stretch for the genre, but BattleBlock’s execution has few peers, plus it boasts co-op, both online and off, loads of competitive modes, mini-games, and a level editor with Steam Workshop support. And, because this is still a game from the makers of Castle Crashers, there’s a button which lets you fart yourself to death. Parp!