I'm using Bully's non-host modifier, and I've got it to work great in 3 separate codes for using Gigz, Warioman, and to select any character.
But, I need help! As simple as it sounds, I can't figure out how to make it so that Player 2 (3,4 also) has the code. Here's the one I'm using:
Giga Bowser - X
284DE4B0 00000480
F6000001 80508100
7C7C1B78 7CBD2B78
14000170 38A0002C
E0000000 80008000