Download Pre-Patched Mario Mon GBA Rom
Mario Mon is a Pokemon GBA Rom Hack which is based on Pokemon FireRed and codebase in English.
Mario Mon is a Pokemon Fire Red hack that totally replaces the first 150 pokemon and replaces them with Mario foes and characters. Each pokemon has been totally changed including sprites, moves, advancements, Pokedex, producing areas, and so forth.
Also, be sure to check out Pokemon Glacier