This single-player adventure video game was developed and published by Sunsoft, and released in 1991.

Bop-Louie a penguin, Freeon-Leon a cat, Shades a ghost and Gil a frog – are the four friends who came from different species and live now in Ufouria.

One day three of them stumble upon a crater and fall down into it. Bop-Louie decides to climb down the strange land in search for missing friends to get them back home.

The peculiar thing about the game is that when he finds one he has to struggle with it just trying to help them regain its memory. As soon as all of the four creatures are back together, the play turns around assembling the keys to open the Temple Gate that leads back to Ufouria.

All these creatures have got secret weapons. Bob-Louie’s head springs out and attacks the enemy. Freeon-Leon can freeze enemies for stepping-stones. Shades can pop out his eyes and attack. Gil belches bombs destroying walls.