Rygar was one of the first original adventure games. It had the feel of Zelda and Zelda II rolled into one, and for me, that made this game special. What stood out more than anything was what, at the time, was the most superb landscapes ever seen in a video game; I dare say even better than Mario or Zelda. Another great part of Rygar was the catchy music in the background, every level made you feel like a hero.
