we are very glad to know that you have a 88 key piano and you have enough money to afford it.
The thing is, if u talk crap about this "game" only because of the keyboard, it means that you havent used it. I bet you just saw the keyboard and thats it. Didnt you know that u can change the octaves on the keyboard? Yes, you can, there's a button there. Try the kaoss pad in it, changing the parameters of it and of the synth, its so much fun!

You dont need a lot of keys and octave to make good music. You just need something thats inside the upper part of your body.

And, yes, this thing rocks.