Demolish!

Not bad, but an ad after every (very repetitive) stage is excessive. Also, you can choose to watch an ad to "upgrade" your rewards at the end of a stage, but the weapon power-ups you can get are pointless as the buildings all fall with little effort. Of course, if you choose not to do that, you'll still be forced to watch an ad, you just won't get anything out of it. It looks like the only point in the game is to convince you to purchase the "remove ads" option.

Don't waste your time. The game is tedious and repetitive, and there's no challenge. You can easily 3-Star every level, without ever using the power-ups. There are about 30 different buildings, and they're just randomly repeated. There's a counter which tracks how many stars you've earned, but they serve no purpose. There is no progression, so it doesn't become more challenging as you continue playing... the experience is exactly the same on the 1st building as the 150th.

Game is incomplete. You win stars, but there is nothing to use them on. Your character is a catapult, but you can shoot lasers (a tank would make more sense). You win 3 stars for using 10 or less balls, but all buildings can be knocked down in 4 or less. You can only hold 2 laser power-ups. The blue power ball dosen't do anything different than the regular ball. Decent start to a game, but if the creator dosen't add more, this becomes a worthless ad stream with no actual game. We'll see.