Avoid the monsters and collect the orbs! In this game you use your mouse to move your character around and avoid the monsters that continually show up to attack you. You get a warning before they show up because a horizontal and vertical line will show up and meet in the middle making a portal from which the monsters will emerge. There are a bunch of different levels and each has a specific twist and different looks to it, but the objects of each are the same. It’s just the difficulty that changes.