The concept is really good, both stripping the mechanic and flipping the normal rules. However, I got strangely teleported to another part of the track sometimes, thwarting my plan of going as slow as possible by hitting the right tiles and pushing my enemies to the boost tiles. And the flipping of the controls could have some telegraphing before, to prepare you for the shift. In all, a great concept, but if more was left to the player to control, the player would be able to use the world and mechanics to fell in control in this game.