One random day I decided if it was possible to play Touhou Project OST on piano. It sounds crazy and insane but lo and behold, I found a Japanese pianist named 'marasy'. When I found him, he has already done quite a few of Touhou Project songs on piano so feel free to check him out here. He also does some Beatmania songs.
If there's a player who can motivate you to improve playing piano, it has to be him. Fantastic job, I mean look at the video above, that's like 3-4 tunes with 2 hands! And as of date, he is still coming up with moar!