If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Control an upgradable tank to destroy random enemies. It will be the weirdest day you ever had. Fight Mad Old Ladies, Mega Cannons, Evil Bunnies, T Rex and more. Every weird thing is out to get you. But you do have a rather large arsenal of weapons at your disposal including the plain Gatling guns to sniper rifles, tanks , sonars and some really Big Super Weapons to help you survive the 45 levels of madness.
WASD to move.
Mouse to aim and shoot.