Well, I've just become a member of Goo-Corporation, and I think that it's time to get the ball rolling on these otherwise empty forums. (if anyone's around to reply)

I'm starting this thread so people can post any challenges they can think of (that aren't related to finishing level Y with X amount of balls/moves/time left)

For starters:

Challenge 1:
Stabilise the spinning thingy on the level Chain. It's not too hard at the moment because the gooballs can still make connections through walls, but in the full game it should be quite... tricky.

Challenge 2:
Finish the Fisty's Bog level without using balloons. Thats right. Without balloons. It is possible (just).

Challenge 3: Make a ball that doesn't stop rolling on the level Tumbler. (make sure you secure all of your gooballs, or they might go running off down the pipe before you're ready!)

There. Thats my 3 challenges, and here's wishing you all have a goo-d time. (please excuse the pun, i'm tired and can't think of a better post ender).