nice
loved it, but: some suggestions for improvements: a menu-hotkey it was sometime really annoying to run across the map to click the button whilst behind you 20 creeps appeared, wasd control for easier non-moving attacks, the laser should not deal dmg but instantly block more projectiles per each lvl, lvl selection would be cool too, visual upgrades besides the projectiles. Exept for this amount of suggestions i like the game. Easy gameplay, nice animations and an innovativ improvement, i do also like the sounds/music. Perhaps my suggestions would make the game too easy but the menu hotkey is a must =)