Serious balance issues
Already on level 2 it takes me 11 perfect shots (have to kill the extra cannon first) to win, while the enemy only needs 4 hits. Basically, you just have to hope for some great luck. That makes for a poor game in my opinion and after playing level 2 flawlessly several times, but not getting the luck I needed, I was done playing.
maybe you should have upgraded you cannon
Very cool anthony, good work man!