Its a good platform for a game but like many others have said, it has a few design flaws that really lower the playability factor of it.
1) The most common that seems to appear in the comment box is that with certain items (Ski's, Freaky etc) is that they are one use items), thus one mistake basically can cause you to start from square one again.
2) When getting mid way through the game, the arrow moves exponentitally fast making it extremely difficult to actually progress.
3) If you lose a level you go back to square one.
I font mind one use items but with certain upgrades they should be permanent and instead of starting at square one you should be able to reply the levels, for this I only give it a 3/5
I seem to remember having a game very similar to this when I was very young it was on an Acorn 1.6 computer, great memories of childhood and all in all a great game a simple puzzle game :)