So, turns out I need some help

I don't think it's anything serious, but I can't figure out what's going on.
Anyway, what I'm trying to do is this: I want to completely replace Falcon with the Viewtiful Joe vertex + recolors, but with the Falcon Minus Revised PSA. I'm pretty sure that's possible, but I could be wrong.
However, this is where my problem resides. Everything works fine as far as I know, EXCEPT for when I get to the CSS. The second I place my cursor over Falcon/Joe, the game immediately freezes. I have no idea what I did wrong, to be completely honest. If anyone could help me sort this out, I'd greatly appreciate it~