There are 20 different levels in this challenging puzzler. Use the left and right arrow keys to move Robo, and the up arrow to jump. C is the most important key, because that changes the gravity, which is a huge part of the game. Try to collect the jewels as you make your way through the levels, as they will give you extra points. The levels are also timed, so the faster you complete them, the better score you will earn. Think very carefully before making every move on the alien planet Robo lives on. One slip up can kill you!