Destroy the red orbs before they destroy the giant blue orb! You need to use your mouse to click and fire at the red orbs all while moving around by using the W, A, S and D keys to move around. You can also use the one through nine keys to level up. Of course this will make the game much more difficult. As you move through the game, there will be different colored orbs as well as the number and frequency of the orbs materializing. This is a one player game with progressive difficulty.