This app was mentioned in 8 comments, with an average of 1.38 upvotes
Ninja Arashi - just added new chapters, newer levels are much harder.
Sky Dancer - looks good, nice music, basic running game with unlockable characters. Fun past time.
Linkme: Ninja Arashi, Sky Dancer
A labyrinth, where there are no out of bounds on the sides and you can run in a full 360 degrees. You gain more depth because you add in maze running to the genre. Still, keep the DDR rhythm-timed moves please. Think Sky Dancer with levels that are designed rather than procedural-ed. Actually you should probably consider the design behind game series like Tony Hawk or SSX, or why not even Tap Tap Dash.