This is me getting 3520 points on the "Release The Hounds!" level in the original Wonderland game.

This route is easy to execute, but extremely hard to find. The key is to block the Kaboom! on the left to make the other two Kaboom!s walk around faster. You also need to do the boxes the way I do them to have enough time to trap the remaining two Kaboom!s.

If you know the route, this score is not that hard to achieve.