First of all, I love your choice of color. I also tried all the difficulty modes but I couldn't figuring out any difference between them. The highlights were for me the moments as the AI fails were it pushes the puck in his own gate. I think because of this it feels more human because I also did it accidently a few times. lol :D
I wonder if a two player mode would be possible with two mouses ... or on one conrtoller, one stick for every player maybe.