|Loretta no Shouzou: Sherlock Holmes|
|Number of players: 1|
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Loretta no Shouzou: Sherlock Holmes (ロレッタの肖像 Sherlock Holmes) or The Portrait of Loretta is an adventure game developed and published by Sega exclusively in Japan in 1987.
Loretta no Shouzou is notable for being not only the final cartridge release for the SG-1000 (with The Black Onyx released a month later serving as the final My Card release and final SG-1000 game in general), but also the largest SG-1000 game ever, with a ROM size of 128kB or 1-Megabit. As a result, it was released under the Gold Cartridge branding usually reserved for Sega Mark III cartridges (which were meant for games exceeding 1-Megabit size) instead of the Sega Cartridge branding used for The Castle (the last SG-1000 cartridge release prior to this). Sega's hardware archive list Loretta no Shouzou as both, an SG/SC Cartridge and a Gold Cartridge.
The game's packaging follows the same template as other Gold Cartridge releases, but has a blue 1M logo and a blue manual, instead of the red theme usually associated with Mark III releases.