Yeah
that definitely looks like the “stylized” Wii / PS2 versions concept art. Unfortunately I have not yet had an opportunity to play either the Wii or PS2 versions, so I cannot say if it is there or not. However I do know that in the 360 / PC / PS3 versions, the Pink Slime is missing (more or less) in the single player campaign but is largely present in the multiplayer aspect as a power-up where it can be used to turns enemies to your side