Your task in this graphical upgrade of an old classic physics game called Gravity Hook is to climb as high as you can by launching your grapple hook at the free-floating spherical objects. The different orbs you can latch on to have different properties, ranging from the green orbs which you can touch without issue, grey orbs which are chained together and fall if you hold on to them too long, and blue orbs which turn in to bombs and explode if you get near them. You're also able to kick off the wall if you can swing your robot towards one, and mastering wall jumping as well as how to handle the different orb types are all required to get very far. To move your way up you must click the LEFT MOUSE BUTTON nearby a floating orb, firing your grappling hook, and hold until the time is right. Good luck!