Your mission in this cool defense game is to control a contrivance designed to defend your bunker and survive the onslaught of fifteen enemy types utilizing four contrivances, each with their own weapon compatibilities. You salvage scrap parts by destroying enemies, which are used to upgrade your contrivances, projectiles, and bunker. Press "W" KEY to increase speed, "S" KEY to decrease speed. Hit SPACEBAR to fire projectile. Use YOUR MOUSE to aim (Requires "Pivotal Discharging System"). You can switch your weapon using 1-4 KEYS. Good luck!