electric powers in the animation would be sweet, its the little things that matter, but added as gameplay, that could be iffy, only if you could pull it off well then i'd say do it.
If you are gonna plan out levels instead of have them random, then make them go to the music.
Different colors for the levels would be awesome, as well as different backgrounds.
Also if you are gonna do the multiplayer, make sure you add different colored runners so you can tell people apart.
And it would be great to add more to the obstacles, like jump over this, slide under that. Different difficulties, and also maybe re-vamp the boss races by getting rid of the obstacles and having the terrain change into hills and jumps and such, and make the person rely on the spacebar tapping?
and if you'd like any plot suggestions at all, just pm me.
MrSoup
yes make a second, the first was awesome