Connect gears using chain. All gears must spin to complete level. As you progress levels become harder. To play this game, you need brains. If you are stuck at some level - then you can skip it and return later. Amount of skip-able levels is limited.
Only mouse is needed to play this game.
Click LMB on same color gears to connect them.
In later levels click on moveable (glowing green center) gears to move them across level and attach it to axis to make it usable.