No, despite the title this is not another Angry Video Game Nerd rip-off. Quite the opposite, actually, since this is not a humorous video but a serious, accurate and in-depth review. Of an obscure Saturn game! Actually, for Saturn enthusiasts, Guardian Heroes is pretty well-known, despite the fact that most haven't played it. This is probably due to the fact that it's one of the most rare and expensive games out there. Not Radiant Silvergun or Psychic Killer Taromaru-expensive, but still it can cost you as much as a new Xbox 360 game or even more, depending on your luck.
I have a copy of it and played for a little bit once, but just to see if it was working or not, not to really play it, so I can't tell you much about it. This video sure made me want to play it seriously, though.