lol
first off, I think if I could Sell-Back and/or upgrade turrets
upgrade cannons, etc....
maybe have more then one cannon ;D
great game, only played the turret mode (i like turrets, they dont have to move)
currently, level 28, 6 Chain Gun Drones, Chain Gun/Laser Cannon, and I havent clicked the mouse button in 4 levels. (exept to press "GO" lol)
Tips: Save your money till you can get Chain Gun, that takes the cake over all other weaopns.