All i know is, i have seen the blue one packaged as a rar [not saying where to get it]
but, take this as a hint:
XBOX/Bios/Xecuter/Xecuter 2/Unnoficial (or custom)
Also, when i edited my own in xbtool, it only changed the initial orb (i made it red, so when u power on its red for a second) - then it changes back to green, then right before it explodes red dust comes around it and blows up into my red X logo.
Im sure you could make the whole blob red too, using some hex editing, but thats too confusing to me.
Ill wait for someone to package it

pm me on efnet my nick = "johnney5" if you got a red one =)