Kyokushin Five 1st Dan (Including Me) One 2nd Dan (Assistant Instructor) Two 3rd Dan (Instructors) - One of which is the Australian Full Contact Karate Champion (Lightweight) One 4th Dan (Instructor) One 5th Dan (Shihan) - All up thats 10.
Shihan means Master Teacher. My kyokushin head sensei became a shihan after attaining 5th dan a few years ago. So to answer your question. In kyokushin, you need 5th dan to become shihan.
Mine would probably be the mortal kombat series, especially the newer ones with the real fighting styles. But i have recently found a Japanese game called TaeKwonDo for SNES. Quite fun
I do Kyoksuhin and would say that its fully combative. Not to say that we only do practical combat training - we do katas etc...but its a powerful style and all the techniques we train at are applicable in real life situations. (sorry if that didnt make sense/grammatical errors. Extremely tired)
Usually you can decide for yourself if you dont think you have earned the grade and its not so dissapointing when you fail. Its when you try your best and think you have done a perfect job THEN you fail, thats crushing. Having said that, ive never failed a belt test.