Generally making this thread since this is my fore most interest right now.
Guilty gear is a 2D fighting game from japan. It's a quite a balanced, but unbalanced game with some broken shit
It's available on PS2, but also on PC though it's an older version of the game.
It's quite a fun game to mash out a bit on, but learning stuff and getting good on it requires some time since it's quite deep. Put if you have someone to learn with and play against to tune your skills it's great fun. Generally you have combos, pressure, set-ups and zoning, each character being better in different areas of course.
I record matches at least once a month from a place here in Stockholm where we play, so you can check them out if you might find it interesting
https://www.youtube.com/profile?user=poooooooka&view=videos There are much more skilled players in japan, for example, and you can pretty much easily find those kind of vids by simply searching for guilty gear accent core on the tube.