Altered Beast [altbeast] (Arcade Emulated / M.A.M.E.)

Yes, I know there is no video.  Here is the direct link:

http://www.twitch.tv/bubufubu/c/1325800

This is merely to show that there was at one point (before Twitch deleted my supposedly "saved forever" highlights) video evidence of the above score being achieved on JTV.  Visit the link and you will notice my username, a date, a title, and a video description.

For those of you that don't know, there was JTV before there was Twitch.  Twitch wouldn't exist without JTV.  Because gaming got so big on JTV, some of the employees decided to create a separate site to focus on gaming, thus Twitch.  JTV let users decide if they wanted to stay with JTV or go to Twitch.  I stayed until JTV shut down and forced me to convert my account to Twitch if I wanted my videos to be saved.

looks like the Genesis version is very true to the arcade.  which of these versions would you say is the most difficult?

My goal in all 3 versions was to beat it without taking any damage.  The hardest, by far, was the Sega Master System version.