animation not working?

Uh, yes, I have this game I am working on, all I have is a small mesh (That uses NO armatures) and a cube for the moving. I have a few animations for this mesh, like walking (it just kind of bobs up and down). I have an keyboard sensor on the mesh so that whenever I push UP arrow, it plays the animation by going to a “shape action” actuator. I have the frames set up and everything should be right, except that the mesh does not play the animation. Help?

Did you use mesh shape animation to do it? If so, you need to go into action editor (animation) and then choose shape action from the tab at the bottom, and then animate your shape animation from the different shape keys you have made. That should work fine.