450 upgrades, Stackable, Single charged/Burst power=HP Regen up; Single power/Burst charged/Shotgun Charged/Grenade power/Trooper jump=Armor up; Single accuracy/Grenade charge=Damage up; Burst accuracy/Shotgun power=Increased weapon charging; Shotgun accuracy/Trooper Speed=HP+500; Grenade range/Trooper power=More energy from kills. 1500 Upgrades, Once you get one for the particular weapon/suit, you have them for good. Charged non grenade=Laser, WORTHLESS, DO NOT GET; Accuracy=Homing Bullets; Single power=Buster shot, Can charge up for killing practically everything it hits; Burst/Shotgun power=Plasma rounds, increased energy usage but more damage; Grenade charged=Dual grenade; Grenade ranged=Vacuum bomb, sucks everything in range to the grenade; Grenade power=Cluster bomb; Trooper speed=Dash suit; Trooper jump=Hover suit; Trooper power=Shoulder charge, knock back opponents. Rate this up if you care to know in advance what you are upgrading to.