Guide the colored orbs into the proper portals! Use your mouse to click on the arrows to allow the colored orbs to travel to the correct portal by clicking on the proper arrow that lets you fire the orb into the portal. As you progress you have to use the 1, 2, and 3 keys to differentiate between the three different colors and the game gets much harder. You will be faced with the challenge of the orbs crashing into each other. You will have to be quick is you want to be able to move on through the game.