In Foster's Home for Imaginary Friends:TM Imagination Invaders, Goo has done it yet again...her overactive imagination has conjured up a group of cosmic invaders, the Space Nut Boogies. They've raided Foster's Home for Imaginary Friends and taken Madame Foster hostage in search of The Greatest Thing in the Universe, and it's up to you to stop them! Play as Bloo as you explore the Foster's house, sneak past the Space Nut Boogie guards, and gather Mac, Coco, Eduardo and the rest of the gang to rescue Madame Foster!