The fifth boss is so hard to defeat thanks for the tip crocodileman94, i love the graphics on this and can't imagine the time that went into making this! My advise is to upgrade thermonuclear cross grid and repeater, the game doesn't take long to understand and anyone one could play it. Maybe add hotkeys? oh and and don't use the thermonuclear detonator untill your just about to die, as it cost WAY to much and destroys most of the surrounding turrets/mine deployers or drones. should be made easier to dodge final bosses bullets, didn't have too much trouble with fifth boss but it would probably be funner if you could dodge bullets more easily, but Greg probably made it like that for a reason. again exelent game with atleat 2 hours playing time in it, and it kept me entertained all the way through. 5/5