It's Mr. Pants is a puzzle video game developed by Rare and published by THQ for the Game Boy Advance. It was released in North America in 2004 and Europe in 2005. A port of the game for mobile phones was developed and published internationally by In-Fusio in 2005–2006. The game stars Mr. Pants, a crudely drawn mascot formerly featured on Rare's website who had made cameo appearances in several prior Rare games.