Forest of Illusion archival team released a version of the game after Fox McCloud had replaced Sabre, but some characters still refer to him as Sabre and Krystal is playable.
Looks like there might be a fair number of small changes, making a much harder game than the ROM.
Star Fox Adventures hacking gone horribly, horribly wrong.
New light shed on Dylan Cuthbert's time working on Star Fox 2 in Nintendo Life interview.