I thought this game's gonna suck during the first few levels. But when I finally stop playing it to take a rest, I realize I've just spent more than an hour playing it. Yes, This game is just THAT addictive. And the Real challenge is in trying to get 3 stars on every level. It can be frustrating at times, but it can also reward u with a great sense of satisfaction (yes i'm telling the truth) when u figured out how. Thanks for making it free. I will recommend friends to buy it even after the promotion ends.
The hints replenish. You only need to pay IAP I'd you don't want to wait between uses. It's a decent system. Youre not forced to pay for IAP if you get stuck on a level and also it doesn't make things too easy.