Control both the hexagons. Collect the circles. Avoid the squares.
You gotta work on the collision boxes. There are a lot of times in which I supposedly don't touch any obstacle and I die anyway. Also due to the dificulty of the game, I think it would benefit more if it had lifes. Give some time for the player to prepare in the beginning of the level. Sometimes there's not enough time to react.
Also, be sure to add a leader board for players to be competitive with each other :)