Doujin games?

[Shirodramon]

Or whatever they're called ^^;, anyone play/seen any like:

Eternal Fighter Zero
http://www.youtube.com/results?search=eternal+fighter+zero&search_type=search_videos&search=Search

Melty Blood/ReAct(expansion)
http://www.youtube.com/results?search=melty+blood&search_type=search_videos&search=Search

or Queen of Hearts 99?
http://www.youtube.com/results?search=queen+of+hearts+99&search_type=search_videos&search=Search

The ones I listed are fighting games, but they're not the only genres. *shrug* Just wanted to talk about them if anyone knows about them. I have the 1st one and had the last two.