It appears in Greatest hits (the third FPS game), it comes out of the lake. The player has to defeat the attacking rabbids and the submarine will fire a missile. The player then has to reflect the missile back at it. After a few hits it turns in a giant robot rabbid (a parody of the transformers). In this form it shoots plungers at the player while the rabbids are still attacking. It then shoots a missile again and the player just has to reflect it and it will break apart and resemble again. After it is defeated it flies away as it mallufactions, before it finally land on the ground and explodes.