Another attempt to add some new graphics into an NES game, with a hopefully far more professional presentation then last time when I did it with my own characters. You could swaps with whoever you want for the most part, but I did it as:
Noelle - Balanced (Mario)
Ralsei - High jumper (Luigi)
Susie - Fast picker (Toad)
Toriel - Floater (Toadstool)

I love doing styled sprites with actual restrictions occassionally, but either way SMB2 is actually quite a nice and organized game when you look into the code, with just the right amount of characters and animations to start basic character hacking with I'd say. Plus the body shrink with same size head is awesome as a last hit point effect, why so many other games gotta be annoying about it and beep or flash or something.