Before playing: Ah, so it's like Tetris, right? Well, it should be pretty easy.
After playing: GRRAAAGGHHH!! STOP FALLING AND STAY IN ONE SPOT!!
Addictive, in an infuriating kind of way.
Interesting. The dialogue is pretty funny.
Also, to beat the dream guy, just dodge/survive his attacks and try to get the boulders to hit him. Then collect the black gems that drop after he gets hit. that causes his health to go down.