This online free game is 3rd addition of Battle Gear Underground, you play as Battle Gear troops through underground land spaces. Play this Battle online free now! Use mouse to control. A/D or move mouse to right/left corner to scroll. Z, X, C or click mini map to fast forward to left/center/right edge. 1, 2, 3, 4, 5, 6, 7, 8, 9 to select/unleash unit. Q, W, E, R, T, Y, U to change unit type. Avoid Blackhole. See in-game instructions.