Fantastic Contraption

It's an old game, but still really fun. XD
It definitely seems to me that it's 1 part understanding, 1 part creativity, and 3 parts perseverance. XD

http://FantasticContraption.com/?designId=4900042

http://FantasticContraption.com/?designId=4900629 EPIC WIN

Stuck on "Four Balls." :/
I'm glad to see this thread, I started playing this game a while ago but stopped.

Anyway, I have my super simple design, which always makes me laugh.

http://FantasticContraption.com/?designId=4900794

And I never thought of chains, that's neat. The coolest thing I figured out so far was trainwheels. Those work pretty well.

*Goes to experiment a little with this game again*

ADDED:

http://FantasticContraption.com/?designId=4901285
A quick U-Turn lurching monstrosity, but one so powerful that the red ball makes it around, and back to the beginning.
http://FantasticContraption.com/?designId=4934535

And for your viewing pleasure... Level 1... BY CATAPULT.
http://FantasticContraption.com/?designId=4934680

And for your viewing pleasure, a catapult that is much in excess.
http://FantasticContraption.com/?designId=4934680

Strange fascination with gaudy catapults, eh? Ah, well.
http://FantasticContraption.com/?designId=4934982

Sort of a catapult...? Maybe?
http://FantasticContraption.com/?designId=4935186


MAJOR EDIT
Unpossible: Swingin Cat(apult).
...No. Nonono. Don't freeze on me now...
I swear, I did it! If it saves, I'll post the link!

Edit edit: It appears the F.C. site is down. As such, I can't save it.
Bugger.
Alternate solution for Four Balls I like to call "Four Bolus".
http://FantasticContraption.com/?designId=4941478
A Bolus is a mass of food moving through the digestive tract.
This one was fun.

Not as awesome as most of those other ones, but pretty neat.
http://FantasticContraption.com/?designId=5431838