First off, Im not really sure what to say about the 4 1-star reviews this game got. It seems like somebody must have a personal vendetta against the developer and used 4 different accounts to write a bad review, and thats pretty juvenile. Considering the price of this app (less than a dollar - aka the same price as a handful of soggy, crummy french fries at McDonalds) you get 16 different mini-games, which for the most part are well thought out and pretty fun. Thats basically 5 cents a game. Some games are better than others, but you will get a pretty good mental workout going through each of them. Ive spent plenty of time playing this game already, and its pretty addictive - plus its a great way to wake the brain up before class or work, and it gives you a chance to flex some mental muscles that havent been used for a while. If youre not sure if youll like it, take a look at the free version of the game, which contains 4 out of the 16 total games. But really, for $1, its a no-brainer. Check it out!