Use the arrow keys to guide the little blue block (known as "Cubey") to get to the purple colored square. Beware...the blue sets you back. To beat the World High Score, then you have to get the lowest score. There is a timer, too!
The jumping code came from ScratchWiki. ========================================== Earlier comments mentioning the orange is from an earlier version of the game with a different color scheme and a few glitches.