It's fun when it works. More and more, it freezes after a level before saving the success, taking my tickets and time but not giving my rewards and progress. I get you want to force people to watch ads but save the progress first. Saving shouldn't be an ad reward. At the bare minimum, don't still take the tickets used in the level then. I'd rather the ad be at the beginning of a level. They are annoying enough without stealing tickets and making you redo.

I really love this game but watching ads to get a screw removed, a hammer or redo a move it fcks up and reloads the app. It does so frequently I have to just quit because instead of a stress reliever it's a stress inducer. when you have a single move to make and it suddenly reloads, it makes me wanna delete the entire app. I would be on this game 24/7 if it didn't reload and make me lose my progress every few minutes, literally every few mins. I'd have given it a 4 if not for all I've mentioned.

A good game that is dragged down by the excessive amount of ads. About 50% of your time in this game is watching ads. And the puzzles are designed that you'll need to watch at least 1-2 ads to complete a level..and when you complete a level, you are rewarded with..another ad. If you value your time, play one of the other dozens of wood/screw/bolt puzzles..