I like the game but I wish there were more weapons, and more enemies, and also maybe a sick track instead of silence until I hit someone or pick up something or get hit. Also, there should be some abilities that you can buy with coins that have cooldowns that are reset every {insert number here} kills. Also, the game doesn't save your coins, your high score for kills, or your weapons if you close it. I think you could store data saves on the computer that deletes the old one when a new one is made while pressing a quit button that closes the application. Overall, it's a good game but look at computergenerateduser's comment for the game's AI recommendations, I am just covering recommendations for the game's features.
-theAPI