The universe is under attack and it's up to you to liberate the planets. Feel the adrenaline as you fend off hordes of cyborgs, motherships, and deadly bosses. Challenge your reflexes by dodging incoming fire and diving enemies. The skies will explode with your power. This action-packed, addictive game has classic arcade-style gameplay. The full version features unlimited play, unique and challenging enemies, stunning graphics and sounds, tons of levels, and powerful power-ups.