As i have said before, the copy/paste guides people keep posting DO NOT WORK! If you're going to use a guide/walkthrough, use the game's walkthrough on the menu.
"They say you can wish upon a comet, and it will come true. Their wish won't when they see this comet crash into their them and their allies. Get your Comet Card today!"
People: the guides that are being copied and pasted DO NOT WORK! Except for the Green Orc character part, it will not work. You're better off clicking on the walkthrough button. It's still a guide, except it works. And it's from the creator of the game. And it's still a guide, just with a different name.
wow... nice physics! i really don't think that the engine needs to be changed. but yes, an indicator that says "This beam failed on the previous test"... Maybe have the beams turn red on the design page?
 "Pirate Launch"){kind=icon}
 "Epic War 3"){kind=icon}
 "UPGRADE COMPLETE!"){kind=icon}
 "Cargo Bridge"){kind=icon}
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 "Pandemic 2"){kind=icon}
 "Updated"){kind=icon}
 "Post it Draw it"){kind=icon}
 "Thing-Thing Arena 3"){kind=icon}
 "The Torture Game 2"){kind=icon}
 "Book of Mages: The Chaotic Period"){kind=icon}