Momotarou Collection is a compilation of two Hudson's Momotarou games: Super Momotarou Dentetsu II & Momotarou Dengeki.

Momotarou Dengeki: Momotarou Thunderbolt game is based on famous Japanese folk tales. Momotarō is a boy who was found in a huge peach (hence his name, "peach guy"). When he grows up, he goes to the island of demons, fights them, takes their treasure, and restores peace in its village. In this game, you don't play directly the story of Momotarō, but control three other popular characters from Japanese folklore, playing three separate stories: as Yashahime, the daughter of the Hell King Emma; Binbōgami, or "poverty god", who is hated by people because he takes money from them; and Urashima, the legendary fisherman who once saved a turtle and became friends with the dragon clan. Although the original stories have nothing or little to do with each other or the story of Momotarō, the game ties the stories together by featuring Momotarō as a character in every one of them.
Despite being primarily a game for kids (the story is told in a fairy-tale fashion), this is a full-fledged Japanese-style RPG with levels, party management, world map traveling, dungeons, towns, weapons and armors, and turn-based combat against randomly appearing enemies, viewed from first person perspective.

Super Momotarou Dentetsu II is the second "Super" game in the long-running Momotarou Dentetsu series and the third overall. The games focus on each player's burgeoning real estate corporation, allowing the players to take turns and move their trains around the board to buy properties and trade resources. It plays similarly to the Parker Brothers board game Monopoly or the Itadaki Street games.