This might have been more fun if there was a limit to how much I could shoot, I was just spamming left click and ended up seeing how far away I could kill the wizards
there actually is a limit. the bullet's disappear after 5 seconds if they don't hit anything. also, the red wall of death speeds up over time, and the zombies walk speed and spawn rate also increases. so if the game is too easy in the beginning, just keep playing and it will get harder