sniper bot bug - tried to block a sniper bot attacking me with a shield wall by clicking on the shield wall and then the sniper bot. Instead, it gave me the sniper bot's ability to ping. Without realizing it, I pinged the attacking sniper bot and when i selected "use blockers" the game bugged.
Try to finish each level using as few pieces as possible. A piece is any wheel or rod. I have finished alsmot all with less than 10 pieces, and most with less than 5:
Big ball, 5 pieces:
http://fantasticcontraption.com/?designId=1897544
Four balls, 7 pieces:
http://FantasticContraption.com/?designId=1899924
quite a few of the early levels can be done with 1 piece!
 "Flash Element TD 2"){kind=icon}
 "IncrediBots"){kind=icon}
 "Frantic"){kind=icon}
 ":the game:"){kind=icon}
 "Mytheria"){kind=icon}
 "Fantastic Contraption"){kind=icon}
 "Dog Eat Dog"){kind=icon}
 "Tangerine Panic!"){kind=icon}