Kero Kero Keroppi no Daibouken 2: Donuts Ike ha Oosawagi (Jap.: "Kero Kero Keroppi's Great Big Adventure 2: Trouble in Donut Pond" ) is a Japan-exclusive action video game for children that was released on the Family Computer console in 1993.
This video game has Sanrio's character searching for lost children who have been kidnapped by monsters. Essentially a standard Super Mario Bros. clone, the player controlling the cartoon frog has to leap around platforms jumping on baddies or killing them with his croaking. Each boss is defeated via playing some children’s board game.