What about Pokemon Heaven and Hell?
Btw, are You going to insert some 5th gen Pokemon (with other random Pokemon), or all 5th gen Pokemon (with other random Pokemon), or maybe all 649 Pokemon? (Yeah I see someone insert all 493 Pokemon in his hack (GBA actually has 65536 Pokemon and I know the program to change Name, moves, etc. (but not sprite)))
And please don't insert fakemon cuz that will ruined my game