Decent attempt! I think it would be really interesting if the maze level also had enemies (zombies) walking around. That would force the player to find alternate paths to get to the intended location. For the gun level, it would be cool if zombies could actually move and try to attack the player. I also think it would be better if the player had very limited ammunition, cause it would actually force him to find more ammo on the map while having to avoid the zombies, there would essentially be more variety. Though ya I definitely see the beginnings of a fun game. Lots of creative things can be added to a zombie game like this, well done.