I just beat the entire game, 4 stages, 24 levels each. Each level gets progressively harder. The physics are accurate and it’s a good amount of challenge at the normal difficulty. You can’t change the difficulty because it costs money, but that’s the only thing in the game that is really off limits due to money. If you need a hint you can watch an ad and it will build around 20%-25% for you. The game is fair and isn’t unreasonable. The only thing I wish I could add would be a sandbox type mode, with unlimited money.

Nothing is more insulting to me as a gamer than this app. Along with a buggy interface after an ad appears every five seconds and you have to completely close and end the app, the app is an absolute cash grab. Absolutely everything costs money as the developers will do anything to get your money. They only let you play six levels out of roughly four terrain types. You can't even change the difficulty because it costs money. Absolute ridiculous amount of profit these idiots are trying to make on this app. Unfortunately these things work on people, but I am too smart to spend my money so poorly. Unless you only want to play a few levels on a buggy app. Don't download this garbage. They don't deserve to make the amount of money they are trying to get with such a poor app.

I really enjoy playing this game and the ads don’t annoy me that much, my only complaint is that when you fail you have to exit the game and close the game to be able to even click a button. In other words the game crashes if you fail a level and ads pop up every time you enter the game or complete a level and I wish that there was a sandbox mode so you can build to your hearts content with infinite money but I really enjoy this game

Levels menu has no way to scroll. Hangs after watching an ad to get a hint; had to kill the app, which takes me back to the menu i can’t scroll through. 😕Gameplay is ok. Pieces explode if stretched or compressed too much, although what too much is is a matter of trial and error. It’s very much a matter of trial and error to find something that basically works and then try to optimize, but sometimes that won’t get you to a three star solution, and you have to start over and try something completely different.