2.5 stars. Decent game. If you don't want death by ads, you can purchase to have them removed ( and they stay gone. A rarity in today's mobile game arena). Puzzles are simple though and kinda dumb. Decent effort by developers IF it's their first game ( no idea) but if they are a seasoned developer then they gotta do better because the puzzles have way too lazy an effort put into them. You get bored pretty quickly.