Mushroom Men: The Spore War preview at Gamespot.

"The DS game, which we were allowed to play an early version of for a few minutes, also doesn't appear to make unnecessary use of Nintendo's unusual controller options. A side-scrolling action game with 3D visuals, Mushroom Men on the DS will again see you assuming the role of an edible mushroom man--using the D pad to move, and three of the face buttons to perform jumps, melee attacks, and ranged attacks, respectively. The level that we played saw us attempting to navigate an area in a bathroom, complete with a rubber duck that we could ride on the back of, and various flying insects who seemed intent on hurting us."

Full Source: Gamespot