To play the game, use the mouse or the UP arrow key to jump and grab onto walls. You can then jump off the wall to turn around. The character will automatically move forward, so you don't need to worry about running. In later levels, you can use the right mouse button or the SPACE key to turn on and off the translucent blocks. The objective is to navigate through the levels and reach the end by jumping and climbing on walls. Avoid obstacles and use the special abilities of the translucent blocks to progress through the game.