Blender Bros. is a platform game for the Game Boy Advance featuring Blender, the leader of the Cosmo Keepers. Players assist Blender in thwarting the evil Zooligans across various levels. Utilizing his large ears, Blender can navigate using sonar, achieve brief flight, and perform a spin attack. Players can also command Mini Bros., each with unique abilities, to aid in solving puzzles and overcoming obstacles.
The player is Blender, the fearless leader of the Cosmo Keepers. He is determined to save the galaxy from the evil, but cute Zooligans. He has a huge set of ears that he can use for sonar (for figuring out where to go in a level), to fly for a short period of time, or to hit enemies with his signature spin move.
In the game, he uses Mini Bros. to help him. They all have special abilities that vary. Some can be used for lighting dark areas, some can heal Blender's life, and some do other things.