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| Teddy Boy Blues | |
|---|---|
![]() 1985 Japanese arcade flyer Featuring Yōko Ishino | |
| Developer(s) | Sega |
| Publisher(s) | Sega |
| Platform(s) | Arcade, Master System, Mega Drive, Mega-CD |
| Release | 1985 |
| Genre(s) | Platform |
| Mode(s) | Single player, multiplayer |
| Arcade system | Sega System 1 |
Teddy Boy Blues – Yohko Ishino (テディボーイ・ブルース / 石野陽子 Tedibōi Burūzu / Ishino Yōko) is a 1985 arcade video game made by Sega. It stars a young boy who is armed with a gun. Each level is an infinitely-repeating maze with several dice. Each die is filled with monsters which hatch out and the player must shoot to shrink, then collect them. If the player does not collect each shrunken monster quickly, it turns into a time-eating bug which flies to the time limit bar and consumes a chunk of it. If you touch one monster or run out of time then you lose a life. The game ends if all lives are lost. There are 50 distinct levels, called "rounds" in the game, even though the counter goes to 99 (the 100th level does not show). The player can play through the levels loops infinitely, with no apparent end. There are also "bonus rounds" every so often; in the Master System version, the player can shoot colored dice to reveal prizes and increase their score.
The name of the arcade version was a reference to a 1985 hit song entitled "Teddy Boy Blues" by then-popular Japanese pop star Yōko Ishino, an instrumental version of which constantly played in the background during the game. An animated version of Ishino also appeared on the title screen and during the bonus rounds.

Sega's console-ported version of the game became a launch title for their Mark III. The exported Master System version is simply titled Teddy Boy and featured different background music as well as no references to Ishino.
Teddy Boy was re-released in Brazil by Tectoy under the title Geraldinho. The hero was replaced with the character named Geraldinho, who originates from a comic strip by Brazilian cartoonist Glauco. This version gives the player five lives to start with, while the original game gives only three.
The game was ported to the Sega Mega Drive, and released online on the Sega Meganet service in Japan. Later it was also released for the Sega Mega-CD as part of the Game no Kandume vol. 2 collection, which consists of Meganet games. It was also released on the SING!! SEGA Game music CD, and the original music is replaced with melodies from several Sega games, performed by the Japanese band B.B.Queens.
In Japan, Game Machine listed Teddy Boy Blues on their June 1, 1985 issue as being the second most-successful table arcade unit of the month.[1]
Edits and submissions to the site (including screenshots, box art, developer information, game summaries, and more) go through a verification process of fact-checking by volunteer "approvers".[2] This lengthy approval process after submission can range from minutes to days or months.[3] The most commonly used sources are the video game's website, packaging, and credit screens. There is a published standard for game information and copy-editing.[4] A ranking system allows users to earn points for contributing accurate information.[5]
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MobyGames was founded on March 1, 1999, by Jim Leonard and Brian Hirt, and joined by David Berk 18 months later, the three of which had been friends since high school.[6][7] Leonard had the idea of sharing information about computer games with a larger audience. The database began with information about games for IBM PC compatibles, relying on the founders' personal collections. Eventually, the site was opened up to allow general users to contribute information.[5] In a 2003 interview, Berk emphasized MobyGames' dedication to taking video games more seriously than broader society and to preserving games for their important cultural influence.[5]
In mid-2010, MobyGames was purchased by GameFly for an undisclosed amount.[8] This was announced to the community post factum , and the site's interface was given an unpopular redesign.[7] A few major contributors left, refusing to do volunteer work for a commercial website.{{Citation needed|date=June 2025} On December 18, 2013, MobyGames was acquired by Jeremiah Freyholtz, owner of Blue Flame Labs (a San Francisco-based game and web development company) and VGBoxArt (a site for fan-made video game box art).[9] Blue Flame Labs reverted MobyGames' interface to its pre-overhaul look and feel,[10] and for the next eight years, the site was run by Freyholtz and Independent Games Festival organizer Simon Carless.[7]
On November 24, 2021, Atari SA announced a potential deal with Blue Flame Labs to purchase MobyGames for $1.5 million.[11] The purchase was completed on 8 March 2022, with Freyholtz remaining as general manager.[12][13][14] Over the next year, the financial boost given by Atari led to a rework of the site being built from scratch with a new backend codebase, as well as updates improving the mobile and desktop user interface.[1] This was accomplished by investing in full-time development of the site instead of its previously part-time development.[15]
In 2024, MobyGames began offering a paid "Pro" membership option for the site to generate additional revenue.[16] Previously, the site had generated income exclusively through banner ads and (from March 2014 onward) a small number of patrons via the Patreon website.[17]
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