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{{Bob
| bobscreen=Shanghai title.png
| publisher=[[Sega]]
| developer=[[Sega]]
| licensor=[[Activision]]
| system=[[Sega Master System]]
| peripherals=[[FM Sound Unit]]
| players=2
| genre=Family{{fileref|Shanghai EU cover.jpg}}
| releases={{releasesSMS
| sms_date_us=1988-10{{magref|ce|7.07|08}}
| sms_code_us=5110
| sms_date_eu=1988
| sms_code_eu=5110
| sms_date_uk=1988-11{{fileref|1988 89 SMS UK Catalogue.pdf|page=2}}
| sms_code_uk=5110
| sms_rrp_uk=22.95{{magref|cvg|87|140}}<!-- Raze #11 (p77) says 24.99; ACE says 19.95 and 22.95 -->
| sms_date_au=19xx
| sms_date_se=19xx
}}
| otherformats={{NonSega|Arcade|Amiga|CPC|APPLE2|APPLE2GS|A8B|ST|C64|IBMPC|FMTOWNS|LYNX|Mac|MSX2|NES|PC88|PC98|X1|X68|TRSCOCO|PCE}}
}}
'''''{{PAGENAME}}''''' is a mahjong solitaire game developed by [[Activision]] for various home computer systems, and converted and published by [[Sega]] for the [[Sega Master System]].

==Gameplay==
{{ScreenThumb|Shanghai SMS, Gameplay.png|align=left|width=200|Gameplay}}
The object of the game is to remove all the tiles from the board by matching pairs. There are 144 tiles, which are arranged in a five-level pyramid called the "Dragon Formation" (also called a "turtle"). When two tiles are matched, they are removed from the board, exposing any tiles underneath for play. Any two seasons can form a pair, as can any two flowers, while other tiles must be matched with an identical counterpart.

Only tiles with at least one free vertical edge (meaning tiles with a free space to the left or right of them) may be matched on a turn. It is possible to remove the tiles in the wrong order and end up with an unwinnable game because there are no more matching pairs that meet this requirement. To be consistently successful, the player should strategize removing tiles that open more tiles for matching and avoid removing tiles that do not open anything (unless there are no other possible matches). The game is won when all pairs of tiles have been removed from the board or lost if no more valid moves can be made. A counter shows how many tiles are remaining, and a timer shows how long the player has taken on the current game or how much time is remaining (depending on the mode).

The game uses a cursor, which is moved using the D-Pad. The player can select a tile with {{2}} or cancel a selection with {{1}}. Tiles can only be selected if they have no other tiles on top of them and a free space to either side of them. When one tile has been selected, a second tile can only be selected if it is a valid match. Pressing {{2}} again when two tiles are selected confirms the match and removes the tiles.

There are two menus at the top of the screen that can be selected by the cursor: Help and Game. The Help menu contains items to identify any tile, undo the last move, show all possible moves (one at a time), "peek" at covered tiles by removing tiles from the board (which requires ending the game), or change the music (between three tunes). The Game menu contains items to restart the current game or start a new game in one of the three game modes.

===Modes===
There are three game modes:
*'''Solitaire:''' A single-player mode. The player has the option of starting with a random pattern or loading one of a dozen predetermined patterns. The shape of the formation is the same for every pattern, but the arrangement of the tiles differs.
*'''Tournament:''' A mode for multiple players to compete, where each player takes turns playing a game, sharing the same control pad. After a player completes a game (either in victory or defeat), the next game starts using the same pattern (arrangement of tiles). In between games, the best five scores are shown. Players can choose a time limit of 5, 10, or 20 minutes or no time limit for each game.
*'''Challenge:''' A two-player mode, where each player takes turns making a move on the same board, using separate control pads. Each player has a limited amount of time (5, 10, 20, 30, or 60 seconds) to complete a turn and tries to remove more tiles than the other player. The number of tiles removed for each player is shown at the top of the screen.

The game starts in the Solitaire mode initially, but a new game can be started in one of the other modes through the Game menu at the top of the screen. The two multiplayer modes lack the menu options to undo moves, show all possible moves, peek at covered tiles, or restart the current game.

===Tiles===
{{InfoTable|
{{InfoRow
| title=The Suit of Dots
| sprite={{sprite | Shanghai SMS, Tiles.png | 2 | crop_width=130 | crop_height=24 | crop_x=0 | crop_y=0}}
| desc=A suit using dots or coins to represent the numerals 1 through 9.
}}
{{InfoRow
| title=The Suit of Bam
| sprite={{sprite | Shanghai SMS, Tiles.png | 2 | crop_width=130 | crop_height=24 | crop_x=0 | crop_y=24}}
| desc=A suit using a peacock to represent 1 and bamboo shoots to represent 2 through 9.
}}
{{InfoRow
| title=The Suit of Crak
| sprite={{sprite | Shanghai SMS, Tiles.png | 2 | crop_width=130 | crop_height=24 | crop_x=0 | crop_y=48}}
| desc=A suit using [[wikipedia:Chinese numerals|Chinese numerals]] to represent 1 through 9. The character on the bottom is 萬, representing ten thousand.
}}
{{InfoRow
| title=The Dragons
| sprite={{sprite | Shanghai SMS, Tiles.png | 2 | crop_width=46 | crop_height=24 | crop_x=0 | crop_y=72}}
| desc=The Red Dragon, the White Dragon, and the Green Dragon.
}}
{{InfoRow
| title=The Winds
| sprite={{sprite | Shanghai SMS, Tiles.png | 2 | crop_width=60 | crop_height=24 | crop_x=0 | crop_y=96}}
| desc=The North Wind, the South Wind, the East Wind, and the West Wind.
}}
{{InfoRow
| title=The Seasons
| sprite={{sprite | Shanghai SMS, Tiles.png | 2 | crop_width=60 | crop_height=24 | crop_x=0 | crop_y=120}}
| desc=Spring, Summer, Autumn, and Winter. Any two seasons can form a pair.
}}
{{InfoRow
| title=The Flowers
| sprite={{sprite | Shanghai SMS, Tiles.png | 2 | crop_width=60 | crop_height=24 | crop_x=0 | crop_y=144}}
| desc=Orchid, Plum, Mum, and Bamboo. Any two flowers can form a pair.
}}
}}

==Production credits==
{{creditstable|
*'''Designed by:''' Brodie Lockhard ([[Activision]])
| source=Title screen
| pdf=Shanghai title.png
| console=SMS
}}
{{hr}}
{{creditstable|
*'''Programmer:''' [[Mark Cerny]] (Sega)
| source=Uncredited
| console=SMS
}}

==Magazine articles==
{{mainArticle|{{PAGENAME}}/Magazine articles}}

==Promotional materials==
{{gitem|SMS DE TVAdvert 1989.mp4|SMS DE TV advert (1989)}}

==Physical scans==
{{ratings|SMS}}
{{Scanbox
| console=Master System
| region=US
| cover=Shanghai US cover.jpg
| manual=Shanghai sms us manual.pdf
}}{{Scanbox
| console=Master System
| region=EU
| cover=Shanghai EU cover.jpg
}}{{Scanbox
| console=Master System
| region=EU (Sega®)
| cover=Shanghai SMS EU Box R.jpg
}}{{Scanbox
| console=Master System
| region=EU ("No Limits")
| cover=Shanghai EU nolimits cover.jpg
}}{{Scanbox
| console=Master System
| region=SE
| cover=
}}{{Scanbox
| console=Master System
| region=AU (Not for rental/hotline stickers)
| front=Shanghai SMS AU cover.jpg
| back=Shanghai SMS AU back.jpg
| spinemissing=yes
| cart=Shanghai SMS AU cart.jpg
| cartback=Shanghai SMS AU cartback.jpg
}}{{Scanbox
| console=Master System
| region=AU (OziSoft sticker)
| cover=Shanghai SMS AU os cover.jpg
| cart=
}}

==Technical information==
===ROM dump status===
{{romtable|
{{rom|SMS|sha1=58F01556D1F2DA0AF9DFCDDCB3AC26CB299220D3|md5=F0595FBD334CB8E95C0486A588A24F7B|crc32=AAB67EC3|size=128KB|date=|source=Cartridge (US/EU)|comments=|quality=good|prototype=}}
}}

==References==
{{NECRetro|italics=yes}}
<references/>

{{ShanghaiOmni}}
{{Shanghai}}