Game Description & Manual: Using the mouse, move the Katra around the edge of board. Click the mouse to drop the Katra. The wormhole will suck the Katra from your grasp if you run out of W.R.A.X power, so drop pieces Quickly! Get 3 similar Katras in a row to clear them. The more Katras you clear with one drop, the more points you get. You must clear a certain number of Katras to finish each wave. If you drop too many Katras in a row without clearing any, the wormhole will overflow and belch out another row of Katras. Make sure to check your overflow meter!