This Metroidvania-style action game was created using Petit Computer 3-go SmileBASIC, a programming software aimed at beginners released for the Nintendo 3DS.

It won the Grand Prize in the Freedom category at the 4th Petit Computer Ogiri competition. It was released by Smile Boom, known for the Petit Computer series, and developed by Puwatto X.

Doukutsujima Island floats quietly in the vast ocean. Legend has it that the rejuvenating treasure "Dahiyamondo" lies in a cave on this island. Players take on the role of Masapon, a young man rumored to be the next generation hero, and their goal is to obtain this treasure!