How far can you run along the paths? Flip the ground under you to avoid enemies and keep going in the right direction. 6 different themes with dozens of avatars to play with. 
FlipTiles runner is feature complete but still in development so your saved progress may be lost when major level changes are made prior to release.

tell me what is too easy or too hard?

which programmer art sucks the most?

which programmer sound sucks the most?

what doesn't suck?

There is a series of 14 blogs of developing this game from scratch

Development log