In Gravity 2 you are a rolling ball in search of crystals, hidden passages, and a way out of each level to move on to the next. You need to collect as many crystals as possible. You'll use the crystals to buy items an power-ups from the shop. Be on the lookout for secret areas that will store even more crystals. Use your arrow keys to move around and notice how you're not rolling like a ball might up and down these hills and waterfalls, because gravity is lower here. You will float a bit and be launched by little cannons if you roll into them. The mazes are intricate and each level introduces more twists and turns and new things for you to explore.