Can you update the game page so we can see the whole game board? currently I'm fighting the browser scroll to be able to even see where I am. Other than that, the game has a good concept. However, there seems to be no real incentive to collect coins. To improve the game, Instead of 1 life, I might add a hunger system, so you're forced to move around, collecting the colored squares as food. Contacting the red boxes may continually drain your hunger while in contact with them instead of an instant kill to add more flavor to the game. To make the game have a softcap and not be endless, you can gradually increase the rate that hunger builds. You're not too far from a roguelike game here.