You play as military troops by means of metropolis landscapes, battle towards loopy alien invasion!rnrnUse mouse to regulate. A/D or transfer mouse to proper/left nook to scroll. Z, X, C or click on mini map to quick ahead to left/middle/proper edge. 1, 2, three, four, 5, 6, 7, eight, 9 to pick/unleash unit. Q, W, E, R, T, Y, U to vary unit sort.