Kotaku: "In Invizimals, gamers will use the Playstation Portable and a camera attachment to scan their homes, yards, surroundings in the hunt for invisible creatures to capture, train and later fight.
The augmented reality game uses the camera to place moving 3D creatures in a players real world, as seen through the PSP's screen. But because it relies on the camera to work, it won't be a game you play on the PSPGo when it's released."