Use the arrow keys and the space bar to place the pieces of the snowman on one of 3 columns. Place a head on the snowman to clear it. However, the pieces have to be smaller than the ones below them, and the snowmen cannot exceed a certain height. Your score is the total of all the heights of the cleared snowmen.
ALL of this was made by @jackmccomish but I noticed that many people were "complaining" about a glitch in the menu, in which you could press space and get as many points as you wanted. I fixed that glitch so now you can't do that! Please tell me if you find any other glitches/hacks! :) (I noticed that he fixed it later today...)