Well, since Huseyin taught me how to extract and import 3DS byaml files, I made this as a quick test.
Basically, SMW has a moveset where you can look up and kick turtle shells upwards.
Well, I decided to put that in the NSMBU theme. But, um, when pressing the up button, he does a different idle animation instead of, ya know, looking up. But the physics still work.
(Yes, this is tested and known to work)