King Dedede and Bandana Dee's Big Adventure

 is a side-scrolling game featuring King Dedede from the Kirby franchise developed and published by Tooniverse Interactive and co-published by Nintendo and Hal Laboratories for the Tooniverse Power System.

The game is a hack of the Sega Master System game Psycho Fox. It was the first Tooniverse Interactive game ever made.

Gameplay
The player takes control of King Dedede (from Kirby) in this side-scrolling video game. King Dedede must get from the left-hand side of the level to the right-hand side of the level. However, there are many enemies in the way. He can use a warp star to change into other characters, namely Chunky Kong (from Donkey Kong 64), Bandana Dee (also from Kirby) or Pikachu (from PokéMon), each of which has its own special ability. Chunky Kong is slow and cannot jump very high, but can punch through special destructible blocks in the game world. Bandana Dee can jump higher than the other creatures and Pikachu can run faster. Dedede also has his hammer, who can be used as armor or as a boomerang. If Dedede is hit while carrying his hammer, Dedede's hammer goes away and the player does not lose a life.

Differences between Psycho Fox and

 * The music from Psycho Fox was changed to music from the Kirby franchise.