Arrow keys to move the black block. You start from green. Try and go to the blue square to switch to the next level.HAVE FUN. Hint 1 - For the first two levels move the block up or down al don't touch anything black. P.S. on second level you can touch the black. Hint 2 - For the last two move the block to the sides and don't touch anything black.
I made this game for ZCS.
