Paranoia Dragon did "The Organic Remix" music, using a combination of the PCE version tracks mixed with the PS2 versions and some of his own work. "The Arcade Original" soundtrack is taken from the Sega CD redbook audio, which was recorded directly from the arcade hardware. I originally ripped the tiles from the arcade tile ROM, but Black Tiger wanted in as well, and made the stages look 100 times better than they already were. Charles MacDonald ripped the sprite ROM, so all the sprites we have are pixel-for-pixel arcade-perfect. I did the sprite recoloring, using the arcade palette and aligning to PCE spec, and of course, the code. I also ripped the ADPCM samples from the arcade ROMs, although that was not much work at all. It was quite a team effort even to get this far. We'll resume work on it someday.
Oh... and it's an arcade card game.
In the process of doing this, Charles and I discovered some unused graphics and determined that the game design was changed from its original plan, probably at the last minute. The large door in the background of the stage 2 boss region is supposed to open, presumably to let out the boss character. Instead, those graphics are never used, and we got the version that we got.