NSMB has a static 2D camera for the main levels though, so Cheepskipper can be ripped. The problem is separating the water from Cheepskipper to make better rips of his poses.
EDIT - You can see how the boss battle goes here:
http://www.youtube.com/watch?v=XsTdChLXaVk
EDIT - You can see how the boss battle goes here:
http://www.youtube.com/watch?v=XsTdChLXaVk