If you try to play Illusion of Gaia on a PAL SNES, you will get a lock screen preventing you from continuing. The following patch removes the protection:
Illusion of Gaia (USA) region protection removed.ips

If you try to play Illusion of Time on an NTSC SNES, you will get a lock screen preventing you from continuing. The following patch removes the protection:
Illusion of Time (Europe) region protection removed.ips

If you have any problems, PM bankbank on the forums.

hacking notes:
in ntsc:
at 8bc8e7
nop 3 bytes

in pal:
at 8bc93b
nop 3 bytes

enjoy.