Popful Mail Trivia (SEGA CD)
Cancelled MEGACD VersionWorking Designs made some pretty significant changes to Popful Mail on the SEGACD when it came out in the USA, but that was nothing compared to what would have happened had SEGA gone through with their original plan for porting the original game to MEGACD.
The game would have been re-branded as a Sonic game titled Sister Sonic. All of the characters would be replaced with Sonic characters and Mail herself would have become Sonic's red haired sister. Angry fan letters to Falcom put an end to that and the characters and story came through mostly unchanged.