DOOM game GBA ROM.'s

I know that there are the two official DOOM GBA games. DOOM and DOOM II. But what about other DOOM games like, Final DOOM (TNT). We already know that DOOM games work fine on the GBA, its just a mater of creating a rom out of them. Something that might not be so hard is to make a GBA ROM. out of main WAD.s like Final Doom, DOOM II and what not, and/or we can combine a DOOM WAD. and an "add-on" WAD. into one working GBA ROM.? This would be great, because we could play user created maps...

DOOM game GBA ROM.'s