Explosive Bingo is played like Bingo, but when someone shouts 'BINGO' someone explodes, hence the name. It was introduced in the episode Cosmo Rules. It is also a favorite game of Nana Boom Boom. In fact that is the reason that Nana couldn't help Jorgen when he was ill, she was too busy playing the game. Also, at the end of Cosmo Rules, Nana Boom Boom is seen playing and calling numbers shouting 'BINGO' simultaneously with the others on Timmy. It's unknown which one she REALLY is.