Majesco Entertainment today announced it has shipped Blokus Portable: Steambot Championship for the PSP, a game developed by IREM Software Engineering and based on the Blokus board game. Blokus Portable allows up to 16 people to play in ad hoc wireless mode, or up to three friends to play simultaneously using one UMD. 18 additional characters from the Steambot Chronicles series can be unlocked during the game.