Help with character modifier codes

[Rockman Striker]

Hi, i dont know if someone already posted or answered this, but i´ve already read tons of times the other posts about this, and still dont know what happens.
When i enter the gameshark codes to play as tron (with joker commands) they work, but when i choose a shoe i can play whit other characters, like megaman in aphron, tron, matilda, gatz and glyde, and when i choose no shoes i have the model of Roll, but i dont find her textures, also, i can see bon´s texture, but don´t her/his model. ¿Whats happening?¿i miss a shoe or work with other item, like an armor?
If someone know what´s happening let me know it please, or if you have another codes that work (the other codes in the posts dont work for me)
Thanks.

[Musashi]

Roll is slightly tricky to get working with that method. I would suggest using Undergroundruin's codes, but the only down side is that you can't really switch between models after using one, and that the model can get messed up on some areas.

UGR's Released Codes

[Rockman Striker]

Thanks! I´m gonna try it,
Also, another thing, I´ve play whit that codes, (the ones you can play with matilda, glyde and gatz) and they worked, i started a new game, also i entered the codes for max zenny and all items, when i try to change my weapon the game crashes, and when i saved the game, i restarted, when load the game, it crashes too.
It´s because the models don´t work in every island?

[Musashi]

Well, I have a hard time using certain weapons with the models, too. I don't know. They mess up on me sometimes, but other times they're fine.