Very hard, and just a little fun.
From now on, I will know not to purchase a game that isn't publically advertised... For one reason - the game probably sucks.
This game was pretty fun, well, at least through the training levels. As I continued through training, it just got harder and harder.
Eventually, after spending several days on the game (trying to complete training), my father and I gave up.
The game's been sitting on my shelf for quite a while now, and I don't plan on playing it any time soon. This game may be good for some, but I didn't find it great at all.
I'll give this game a 7.2. It suffered from lots of hard gameplay, but it had the right concept.