Solid Snake
In "Snake's Revenge", a non-canonical sequel to the original "Metal Gear" for the NES released during the same year as "Metal Gear 2: Solid Snake", Big Boss returns as the leader of the enemy organization, having survived the injuries he sustained in the original game as a cyborg. He fights Solid Snake as a boss prior to reaching the new Metal Gear prototype and has two forms: his human form and a fire-breathing cyborg form. Naked Snake also appears as a playable character in "Super Bomberman R".