This is a traditional Japanese RPG. You move Momotarō over the world map, visiting towns and dungeons. Defeated monsters bring experience points and raise Momotarō's level. Enemies appear randomly, and the combat is turn-based and is viewed from first person perspective.

Momotarō Densetsu is an enhanced remake of the original Famicom game of the same name. The story is essentially the same, but the graphics have been completely redone, and several features from Momotarō Densetsu II have been added, including the ability to adventure with a party, rather than just as Momotarō alone.