The Sega CD version of Mary Shelley’s Frankenstein is completely different to the platform game of the same name developed by Bits Studios, although it is still based on the 1994 film starring Robert De Niro as The Monster. This game was developed by Psygnosis and published as a double pack, alongside Bram Stoker’s Dracula, by Sony Imagesoft in 1994. As far as I know it wasn’t released as a stand-alone title.