Click and hold to select aliens-release to kill the ones selected! You have a limited selection area, so you can't select the whole screen :) Avoid letting the mouse touch the enemies Full screen! The enemy going up and down on the right can't be killed-intentionally, but the bullets it fires can.
All designed by me Based off game on Steam Music- "Combo Breaker" by Waterflame http://www.newgrounds.com/audio/listen/587629 Tip: You can pause the game by taking your cursor off the top or bottom of the game!
