Wonder Boy III: The Dragon's Trap

From Sega Retro


  • Master System
  • Sega Game Gear
  • Sega Game Gear
Wonderboyiii title.png
WB3TDT GG JP Title.png
WB3TDT GG EU Title.png
Wonder Boy III: The Dragon's Trap
System(s): Sega Master System, Sega Game Gear, Virtual Console
Publisher: Sega
Peripherals supported:
Sega Master System
FM Sound Unit
Genre: Action[1][2][3]

Number of players: 1
Official in-game languages:
  • English
  • 日本語
  • Release Date RRP Code
    Sega Master System
    Sega Master System
    Sega Master System
    Sega Master System
    Sega Game Gear
    ¥3,8003,800 G-3308
    Sega Game Gear
    Sega Game Gear
    £24.9924.99[7] 2422
    Wii Virtual Console
    ESRB: Everyone
    Wii Virtual Console
    Wii Virtual Console
    OFLC: G

    Wonder Boy III: The Dragon's Trap, called Monster World II: Dragon no Wana (モンスターワールドII ドラゴンの罠) in Japan, is a direct sequel to Wonder Boy in Monster Land, and was developed by Westone and published by Sega for the Sega Master System in 1989.

    The game should not be confused with Wonder Boy III: Monster Lair, which despite being made by the same people and carrying a similar title, focuses more on being a side-scrolling shoot-'em-up with platform segments.


    The Dragon's Trap is a direct sequel to Wonder Boy in Monster Land, to the point where the introductory stage is a remixed version of the final round of Monster Land, complete with music and a fight with the main villain of the last game, the (robot) Dragon, Meka. The game begins with Wonder Boy being able to slay enemies and take damage with relative ease, but after beating Meka, he will be "cursed" and be forced to escape the castle as "Lizard-Man". Once this is done, Wonder Boy III proper will begin.

    Gameplay is similar to Monster Land, however the "arcade" elements of the previous game, such as time limits and a linear progression through levels are dropped for a more open-ended world, with Wonder Boy visiting areas more than once. The objective is obtain all the parts of the "Salamander Cross" by beating "boss dragons", allowing Wonder Boy to return to his human form. As more pieces are collected, Wonder Boy will receive powers allowing him to travel to previously inaccessible parts of the map.

    Like Monster Land, equipment and health can be upgraded along the way. Enemies drop coins, which can be used to purchase items from shops. The game is much larger than its predecessor, and now includes a password system to allow players to pick up where they left off.


    Your first form. Besides long range attack and ability to crouch, it is the weakest form.
    Diminutive size allows him to squeeze through small areas and climb on checkered blocks.
    Can swim underwater.
    Swipes the sword in a 180 degrees arc towards the front and can break blocks around him. Strongest attack power.
    Can fly around and reach places otherwise impossible to reach. Takes damage if touches water.
    Your human form.



    An arguably better version (minus the Wonder Boy branding) exists in the form of Dragon's Curse, released for the TurboGrafX-16 in the years that followed. Confusingly this version of the game is known as Adventure Island in Japan, though bears little resemblance to the Adventure Island franchise, itself branding off from the original Wonder Boy game.

    The Dragon's Trap was also brought to the Sega Game Gear in 1992. International releases of this port dropped the "III," calling it merely Wonder Boy: The Dragon's Trap (a prototype ROM with the original name circulates around the Internet).

    Both the TurboGrafX-16's Dragon's Curse and Wonder Boy III: The Dragon's Trap have been released on the Wii's Virtual Console service, despite being roughly the same game. A similar situation occurred with the sequel, Wonder Boy in Monster World.

    The game was eventuallly remade by Lizardcube and published by DotEmu in collaboration with the original game designer Ryuichi Nishizawa. The game was released on April 18, 2017 on PlayStation 4. Xbox One, and Nintendo Switch and PC in June of that same year.


    Localised names

    Also known as
    Language Localised Name English Translation
    English Wonder Boy III: The Dragon's Trap Wonder Boy III: The Dragon's Trap
    English (US) Wonder Boy III: The Dragon's Trap Wonder Boy III: The Dragon's Trap
    Japanese Monster World II: Dragon no Wana (モンスターワールドII ドラゴンの罠) Monster World II: Dragon's Trap

    Production credits

    Game Gear version

    Original Game
    Source: Sega TV Game Genga Gallery[12]

    Magazine articles

    Main article: Wonder Boy III: The Dragon's Trap/Magazine articles.

    Promotional material

    Master System Mega Drive advert SE.jpg

    SE advert


    Print advert in Games Preview (DK) #8: "8/9 1989" (1989-xx-xx)


    Print advert in Computer & Video Games (UK) #96: "November 1989" (1989-10-16)
    also published in:
    • ACE (UK) #26: "November 1989" (1989-10-xx)[13]


    Print advert in Computer & Video Games (UK) #97: "December 1989" (1989-11-16)
    also published in:


    Print advert in Beep! MegaDrive (JP) #1992-03: "March 1992" (1992-02-08)


    Print advert in Beep! MegaDrive (JP) #1992-04: "April 1992" (1992-03-07)

    Enisof a.s offer.png

    Print advert in Excalibur (CZ) #12 (1992-09-01)

    Physical scans

    Master System version

    Sega Retro Average 
    Publication Score Source
    91 [15]
    68 [4]
    92 [16]
    96 [17]
    96 [18]
    86 [19]
    96 [20]
    100 [21]
    71 [22]
    88 [23]
    81 [24]
    95 [25]
    95 [26]
    96 [27]
    80 №23 (Vol 2), p54
    92 [28]
    100 [29]
    97 [30]
    73 [31]
    Sega Master System
    Based on
    19 reviews

    Master System, US
    WonderBoyIII SMS US cover.jpg
    Wonderboyiii sms us manual.pdf
    Master System, EU
    WonderBoyIII SMS EU cover.jpg
    WonderBoyIII SMS EU cart.jpg
    Wonder Boy III The Dragon's Trap SMS EU Manual.pdf
    Master System, EU
    ® variant
    WonderBoyIII SMS EU R cover.jpg
    Wonder Boy III Dragons Trap SMS (R) Cart Top.jpg
    Wonder Boy III Dragons Trap SMS (R) Cart Back.jpgWonder Boy III Dragons Trap SMS (R) Cart Front.jpg
    Master System, EU (8 languages)
    WonderBoyIII SMS EU 8lang cover.jpg
    Master System, AU
    WonderBoyIII SMS AU reg cover.jpg
    WonderBoyIII SMS AU reg cart.jpg
    Wonderboy III Dragons Trap AUS Manual.pdf
    Master System, AU (silver variant)
    WonderBoyIII SMS AU cover.jpg
    WonderBoyIII SMS AU cart.jpg
    Master System, KR
    WonderBoyIII SMS KR cover.jpg

    Game Gear version

    Sega Retro Average 
    Publication Score Source
    92 [32]
    85 [33]
    92 [34]
    92 [35]
    82 [36]
    52 №37, p58
    84 [37]
    82 [38]
    93 [39]
    Sega Game Gear
    Based on
    9 reviews

    Game Gear, JP
    WB3tDT GG JP Box Back.pngWB3tDT GG JP Box Front.jpg
    WB3tDT GG JP Cart.jpg
    Wonderboy III Dragon Trap Game Gear JP Manual.pdf
    Game Gear, EU
    WB3tDT GG EU Box Back.jpgNospine.pngWB3tDT GG EU Box Front.jpg
    WB3tDT GG EU Cart.jpg
    Wonder Boy III The Dragon's Trap GG EU Manual.pdf

    Virtual Console version

    Technical information

    ROM dump status

    System Hash Size Build Date Source Comments
    Sega Master System
    CRC32 679e1676
    MD5 e7f86c049e4bd8b26844ff62bd067d57
    SHA-1 99e73de2ffe5ea5d40998faec16504c226f4c1ba
    256kB Cartridge (EU/US)
    Sega Game Gear
    CRC32 a74c97a7
    MD5 0e8146c23d7947b4677b9b2ca12850e0
    SHA-1 d98344a2c644ce9a0184e8f836271c038aa16a23
    256kB Cartridge (EU)
    Sega Game Gear
    CRC32 ea89e0e7
    MD5 8e6934c31498569302ff3119c2496043
    SHA-1 5c4d25432512852f48f22280544bd7d034aab744
    256kB Cartridge (JP)

    External links

    • Nintendo catalogue pages: US, AU


    1. File:WB3tDT GG EU Box Back.jpg
    2. File:WB3tDT GG JP Box Front.jpg
    3. 3.0 3.1 https://sega.jp/history/hard/gamegear/software.html (Wayback Machine: 2018-12-07 04:57)
    4. 4.0 4.1 ACE, "January 1990" (UK; 1989-12-xx), page 50
    5. Computer & Video Games, "December 1989" (UK; 1989-11-16), page 36
    6. Computer Entertainer, "September 1989" (US; 1989-09-18), page 13
    7. Computer & Video Games, "June 1992 (Go! Issue 8)" (UK; 1992-05-15), page 22
    8. 8.0 8.1 http://www.nintendo.com:80/games/detail/8pVT43FgIVdr81lfBwwDPx10ijCkuv6z (Wayback Machine: 2010-11-21 03:04)
    9. 9.0 9.1 http://www.nintendolife.com:80/games/mastersystem/wonder_boy_iii_the_dragons_trap (Wayback Machine: 2017-09-07 09:15)
    10. https://www.nintendo.fr/Jeux/Console-virtuelle-Wii-/Wonder-Boy-III-The-Dragon-s-Trap-280174.html (archive.today)
    11. http://www.nintendo.com.au/index.php?action=catalogue&prodcat_id=42&prod_id=19907&pageID=4 (Wayback Machine: 2012-03-28 01:32)
    12. File:Sega TV Game Genga Gallery.pdf, page 99
    13. ACE, "November 1989" (UK; 1989-10-xx), page 111
    14. Computer & Video Games, "January 1990" (UK; 1989-12-16), page 115
    15. ACE, "November 1989" (UK; 1989-10-xx), page 144
    16. Complete Guide to Consoles, "" (UK; 1989-10-16), page 37
    17. Complete Guide to Consoles, "Volume IV" (UK; 1990-11-xx), page 110
    18. The Complete Guide to Sega, "" (UK; 1991-05-xx), page 63
    19. Computer & Video Games, "September 1989" (UK; 1989-08-16), page 104
    20. Game Mania, "May 1993" (UK; 1993-xx-xx), page 81
    21. GamePro, "September/October 1989" (US; 1989-xx-xx), page 38/39 (40)
    22. The Games Machine, "January 1990" (UK; 1989-12-11), page 26
    23. Joystick, "Janvier 1990" (FR; 19xx-xx-xx), page 140
    24. K, "Novembre 1990" (IT; 1990-xx-xx), page 70 (72)
    25. Mean Machines, "October 1990" (UK; 1990-09-xx), page 40/41 (40)
    26. Mean Machines Sega, "October 1992" (UK; 1992-09-xx), page 112
    27. Mean Machines Sega, "October 1992" (UK; 1992-09-xx), page 136
    28. S: The Sega Magazine, "October 1989" (UK; 1989-09-27), page 4-7 (4)
    29. Sega Power, "October 1991" (UK; 1991-09-05), page 60
    30. Sega Pro, "April 1992" (UK; 1992-03-19), page 31
    31. Zero, "February 1990" (UK; 19xx-xx-xx), page 84
    32. Computer & Video Games, "June 1992 (Go! Issue 8)" (UK; 1992-05-15), page 22/23 (22)
    33. Consoles +, "Mai 1992" (FR; 1992-0x-xx), page 107
    34. Joypad, "Juin 1992" (FR; 1992-0x-xx), page 86
    35. Joystick, "Mai 1992" (FR; 1992-0x-xx), page 185
    36. Player One, "Septembre 1992" (FR; 1992-09-10), page 102/103 (98)
    37. Sega Pro, "June 1992" (UK; 1992-05-21), page 36/37 (36)
    38. Sega Force, "September 1992" (UK; 1992-08-13), page 71
    39. Zero, "September 1992" (UK; 1992-08-13), page 80
    NEC Retro has more information related to Dragon's Curse.

    Wonder Boy III: The Dragon's Trap
    Wonderboyiii title.png

    Main page | Comparisons | Maps | Hidden content | Magazine articles | Reception

    Games in the Wonder Boy Series
    Wonder Boy (1986) | Wonder Boy in Monster Land (1987) | Wonder Boy III: Monster Lair (1988) | Wonder Boy III: The Dragon's Trap (1989) | Wonder Boy in Monster World (1991) | Monster World IV (1994) | Monster World Complete Collection (2007) | Sega Vintage Collection: Monster World (2012)
    Wonder Boy V Monster World III Koushiki Guide Book (1991)
    Monster World Complete Collection Original Sound Track (2007)