Simple: Use your worm as ball, and launch it with the rope to the basket!
1 worm per team.
When the game begins, place your worm anywhere on the "floor".
Lauch your worm from the point hooks.
You only have one chance per turn, so if you launched your worm and it didn't make his way to the basket, skip if your fall didn't cause loss of turn.
For this tourney, the winner will be the one who reach 21 points first, or who gets the most points in 15 minutes (according to the game counter), whatever happens first.