Great rhythm game! Has a whole pile of songs that you can play, If you like a song, chances are it's already there and ready to be played. There are a load of great songs and artists that you probably haven't even heard of yet. You can play with your mouse or a graphics tablet to move your cursor around. You can also map (create) your own beatmaps and upload them for the world to see. The osu! community is also great, they provide forums for people to discuss certain things. the forums even have language specific discussion that include Korean and Chinese. I really recommend this game to you even if you're not a rhythm gamer.
!!! OH and if you think this game is based around anime culture then please look into it deeper; there are a ton of songs that aren't even related to that topic at all. you can find a bunch of "non-weeb" maps if that's what you want. !!!