i found a cheese that lets you stay at the back of the map where you don't get pushed into the wall and put quad shooters on each side not leting enimes through.
Hi I have started developing a game that has the same concept unknowingly and my character looks very similar to yours if you want I can send you the sprite so you can see for yourself but as the aim is for my game to be released to the public and cost money I was wondering if this would bother you at all and thought I would better check in on you.