ULTRAGLUNGUS: NAILGUN/RAILCANNON UPDATE WASD to move SPACE or CLICK to shoot Q for alt-fire 1-5 to change guns [5TH UNDER CONSTRUCTION] E to change weapon variation F to punch G to switch arm variation The variable at the bottom is your health, the top variable is the boss health. You can only regain health by being close-range to an enemy while killing said enemy. The green circles indicate where you get healed. The variables at the bottom-left show the charge cooldown timer for your gun's alt-fire (all guns) and your railcannon (gun at slot 4). If the variable is at zero, it's fully charged. Alt-fire cooldown charges faster or slower depending on which gun you have out. Railcannon charge is constant no matter which gun you have out. [note: all alt-fires in original ultrakill that require you to hold down the alt-fire do not work like that anymore. every alt-fire only requires you to tap the button. this is because im stupid and dont know how to code.]