Arcus Odyssey is actually a side story or something from what Zig told me, the Arcus 123 disc has the origanl Arcus games from some old Japanese computer system. They're actually really cool though, and fairly linear and easy to play. Plus the cinemas are cool, and the graphics are all nice and large. I'm planning on playing all the way through them as soon as I can locate a converter for my Sega CD (which are a BITCH to find!).