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Sega Mega Drive

From Sega Retro

(Redirected from Genesis)
Megadrive EU Logo.png
Megadrive1.jpgMegadrive2.jpg
Fast facts on Sega Mega Drive
Manufacturer: Sega
Variants: Mega Drive 2, Genesis 3, Mega Jet, Nomad, Mega Tech, Mega Play, Amstrad Mega PC
Add-ons: Sega Mega-CD, Sega 32X, Mega Modem, Power Base Converter
Release Date RRP Code
Sega Mega Drive
JP
¥21,000 HAA-2510
Sega Mega Drive
US (NY/LA)
$200.00 MK-1600
Sega Mega Drive
US (Nationwide)
$200.00 MK-1600
Sega Mega Drive
MX
$? ?
Sega Mega Drive
UK
£189.99[1][2]
Sega Mega Drive
FR
1890F
Sega Mega Drive
DE
DM ?
Sega Mega Drive
ES
?Ptas
Sega Mega Drive
IT
399.000[3]£ 1600-13
Sega Mega Drive
NL
ƒ399 1600-20
Sega Mega Drive
PT
? ?
Sega Mega Drive
GR
? ?
Sega Mega Drive
SE
? kr 1600-24
Sega Mega Drive
AU
$? 1600-03
Sega Mega Drive
BR
R$? 010300
Sega Mega Drive
IN
₹18,000 ?
Sega Mega Drive
KR
₩154,000 ?
Sega Mega Drive
TH
฿? ?

The Sega Mega Drive (メガドライブ), called the Sega Genesis in North America and Super Gam*Boy (수퍼겜보이) (later Super Aladdin Boy (수퍼알라딘 보이) in South Korea, is a cartridge-based video game console developed by Sega in 1988.

The Mega Drive is Sega's third home console, following the SG-1000 (including SG-1000 II) and the Sega Master System (Mark III). It was codenamed the Sega Mark V during development and is part of what is now known as the fourth generation of video game consoles.

The Mega Drive is Sega's most successful video game console, selling over 40 million units worldwide,[4] including more than 20 million in the United States, over 9 million in Western Europe, 3.58 million in Japan, and 3 million in Brazil.[5]

It has a software library consisting of more than one thousand games released for the system in total. As well as competing with Nintendo's Famicom (NES) and later Super Famicom (Super NES) for market control, Sega also found itself fighting against NEC's TurboGrafx-16 (PC Engine in Japan), SNK's Neo Geo, the Atari Jaguar and numerous home computers in one of the biggest "console wars" of all time.

It had a cartridge enhancement chip, the Sega Virtua Processor (SVP), and two add-on consoles, the Sega CD and 32X. The Mega Drive would be succeeded by the Sega Saturn (released in 1994), and then the Sega Dreamcast (released in 1998).

Hardware

The Mega Drive was envisioned at the next technological step over other video game consoles available at the time. It is a "16-bit" machine, named after its use of a 16-bit CPU (in this case, the Motorola 68000), and was marketed as being superior to popular "8-bit" consoles dominating the market at the time, usually the Nintendo Entertainment System (NES) but sometimes its immediate predecessor, the Sega Master System. 16-bit CPUs had been gaining popularity since the mid-80s, were widely used in arcade machines, and were almost expected to be found in new home computers - it was therefore considered logical that the next "generation" of dedicated video game consoles should follow suit.

The Mega Drive builds on technology found in the Master System (and with adaptors, is fully backwards compatible), though as well as upping the technical specifications for more demanding gameplay, sound and graphics, makes a number of crucial changes to the design of consoles which continue to this day. Firstly it added a third face button, C, to the (now ergonomically designed) control pad. The Mega Drive outputs sound in stereo, and makes an attempt to region lock games through software. Also, when utilising the right cables, the Mega Drive is natively able to produce a clearer image than its rivals (on top of its already higher resolution 320x240 display).

All Mega Drives ultilise a top-loading design (as opposed to the cumbersome VCR-style cartridge loading of the Western NES), while having removable controllers (unlike the Famicom). It was designed from day one to allow hardware expansions, and its use of dark plastic means that the "yellowing" of older systems (from bromine-based flame retardants reacting with oxygen) is less of an issue.

Models

Main article: Mega Drive consoles.

Mega Drive

The original Mega Drive measures 28 cm×21.2 cm×7 cm. The top of the unit is split into two components: a circular emboss with the cartridge slot and a tagline (which was omitted on later versions), and a control panel containing the power and reset buttons and the volume slider for the headphones jack. Audio output through the original model was mono through the A/V port, while the headphone jack was used for stereo sound. A third DE-9 port on the back of the unit provided additional peripheral support, though was removed from later revisions.

Asian, Japanese and South Korean models have a cartridge locking mechanism which prevents cartridges from being removed when the power is on (which is why "Eastern" cartridges, as well as the Sonic & Knuckles cartridge and various others, have a cut-out on their left sides). Later runs included the TradeMark Security System, missing in early builds causing small compatibility issues, despite the feature having been planned early on.

Mega Drive 2

1993 saw this cost-reduced redesign (known as the Mega Drive II in Europe, and sold simply as "Genesis" in North America without the Sega prefix), at 22 cm×21.2 cm×5.9 cm, being introduced internationally. One of the major revisions from the original model was the removal of the headphones jack in favor of stereo output through a redesigned 9-pin A/V port. American and European models used a momentary switch for power while non-western models used a left-right switch. Furthermore, the audio mixing circuitry was modified, resulting in noticeably different quality audio output — here is a page with audio samples, provided by little-scale.

A common myth is that the Mega Drive 2 lacks a Z80 — the truth is that it lacks a Zilog Z80. During the Mega Drive's lifetime, Sega received various off-the-shelf chips from different manufacturers, and sometimes would rebrand chips as their own or make them themselves, which is what happened here (and which is why each Mega Drive has a different manufacturer for its 68000). If the Z80 was missing, most games would have no sound (or not all sound). In later revisions, the Z80 was integrated into a custom ASIC which also incorporated the major chips of the system.

The very last revisions of the Mega Drive 2 (post-1996) took a number of cost-saving measures, combining chips and simplifiyng circuitry, but in the process removing support for the Power Base Converter, Mega-CD, 32X and Virtua Racing. The removable expansion cover and Mega-CD connector still exist on these boards, but now advise users not to remove the protective pin cover.

Genesis 3

Main article: Genesis 3.
A Genesis 3.
The Genesis 3 was a small version manufactured by Majesco in 1998 for the American market, which they had been manufacturing for until then. It is much smaller than its predecessors and lacks all expansions and fixes memory controller bugs — both rendering some games unplayable and the Sega CD and 32X unusable.

Portables: Mega Jet and Nomad

Main articles: Sega Mega Jet and Sega Nomad.

The Mega Jet and Nomad were portable Mega Drive systems released near the middle/end of the system's lifetime. The Mega Jet, released in 1994, was originally designed for use on JAL airliners but was later released for Japanese consumers. The Mega Jet is a semi-portable system; the system has a built-in controller but requires an external power supply and a TV. The Nomad was a full portable in its own right, having an integrated screen and sound capabilities, in addition to a battery pack.

Arcade hardware: Mega Tech, Mega Play, and the System C

Main articles: Mega Tech, Mega Play, System C.

The Mega Drive hardware was adapted for arcade use several times over the course of its life. The Mega Tech and Mega Play allowed arcade operators to provide somewhat modified versions of popular Mega Drive games for arcade play — these systems use special cartridges containing games and players can choose from the games plugged into the system. The System C is a different board built from modified Mega Drive hardware, boasting improved color abilities and (in later revisions known collectively as the System C2) improved sample playback. The System C was primarily home to puzzle games — Columns and Puyo Puyo were released on this hardware.

Data East is also known to have licensed Mega Drive hardware for an arcade version of High Seas Havoc; not much is known about this board.

Mega-CD combos: JVC Wondermega/X'eye, Pioneer LaserActive, Sega Multi-Mega, and Aiwa Mega CD

Main articles: Wondermega, LaserActive, Sega Multi-Mega, Aiwa Mega CD.

Combination Mega Drive/Mega-CD units were developed over the course of the Mega-CD's lifetime. The Wondermega and LaserActive are standalone consoles; the LaserActive also plays LaserDiscs. The Multi-Mega is a portable audio CD player that can play Mega Drive and Mega-CD games when plugged in to wall power and a TV. The Aiwa Mega CD is a Mega Drive/Mega-CD packed into Aiwa's consumer-level portable CD stereos.

Computer combinations: Sega Teradrive, Amstrad Mega PC, al-Alamiah units

Main articles: Sega Teradrive, Amstrad Mega PC, Al-Alamiah AX-660, Al-Alamiah AX-990.

The Teradrive and Mega PC are combination Mega Drive/IBM-compatible PCs made for the Japanese and UK markets, respectively. The three Al-Alamiah computers are combination Mega Drive/MSX computers for the Arabic market.

Modern System-on-a-Chip compilations

A variety of companies now make licensed system-on-a-chip units in a variety of fashions that contain single-chip Mega Drive implementations and several licensed ROM images. TecToy-made SoaCs also contain several "new" MD games, however these are believed to be — and likely are — Java 2 Mobile Edition games running on additional hardware. For a full list of SoaCs, see the template at the bottom of the page.

Cartridges

Main article: Sega Mega Drive cartridges.

Technical specifications

Main article: Sega Mega Drive/Technical specifications.

Comparison

Main article: Blast processing

It was the most powerful console at the time of its release in 1988, surpassing the PC Engine (TurboGrafx-16), and it was not surpassed in power until the Neo Geo in 1990. The Mega Drive is also more powerful than the SNES, released in 1990, whereas the SNES has a larger color palette (see Blast Processing article for detailed technical comparison between the Mega Drive and SNES).

Compared to home computers at the time, it was not as powerful as the Japan-exclusive Sharp X68000 (released 1987) or FM Towns (released 1989). However, the Mega Drive was more powerful than Western home computers in the late '80s, including the Amiga. The Mega Drive's 68000 CPU is clocked at 7.6 MHz, while the Amiga's 68000 CPU is clocked at 7.16 MHz (NTSC) or 7.09 MHz (PAL). The Mega Drive displays eighty 15-color sprites at 32×32 pixels each, while the Amiga displays eight 3-color sprites at 8 pixels wide.[6] The Mega Drive displays 61–64 colors standard and 114–192 colors with Shadow/Highlight, while the Amiga displays 2–32 colors standard and 64 colors with EHB. The Mega Drive's VDP can DMA blit 3.21845–6.4 MB/s bandwidth (6.4 MPixels/s fillrate), while the Amiga's Blitter can blit 1.7725–3.58 MB/s (2.363333–4.773333 MPixels/s with 64 colors). During active display, with 64 colors at 60 FPS, the VDP can write 708 KB/s to 2 MB/s (1.4–2 MPixels/s) during 320×224 display, while the Blitter can write 332.5–700 KB/s (443,333–933,333 pixels/s) during 320×200 display.[7] The Mega Drive supports tilemap backgrounds, reducing processing, memory and bandwidth requirements by up to 64 times compared to the Amiga's bitmap backgrounds,[8] giving the Mega Drive an effective tile fillrate of 6–36 MPixels/s (see Blast Processing above). The Mega Drive has a Z80 sound CPU and supports 10 audio channels, while the Amiga lacks a sound CPU and supports 4 audio channels.[6]

History

Main article: History of the Sega Mega Drive.

Games

Main article: Sega Mega Drive games.
A Japanese Sega Mega Drive (Model 1) overloaded with add-ons including the Sega Mega-CD (Model 1), Sega 32X, Remote Arcade System and Mega-CD Karaoke.

Magazine articles

Main article: Sega Mega Drive/Magazine articles.

Promotional material

Print advertisements

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GamePro US 003.pdfGamePro US 003.pdf

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Print advert in
GamePro (US) #3: "September/October 1989" (1989-xx-xx)
also published in:
  • GamePro (US) #4: "November 1989" (1989-xx-xx)[9]
  • GamePro (US) #5: "December 1989" (1989-xx-xx)[10]
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Game Players (US) Vol. 1 No. 5 "November 1989" (1989-xx-xx)
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  • VideoGames & Computer Entertainment (US) #11: "December 1989" (1989-xx-xx)[11]
  • Game Players (US) Vol. 1 No. 6 "December 1989" (1989-xx-xx)[12]
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EGM US 027.pdfEGM US 027.pdf

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Electronic Gaming Monthly (US) #27: "October 1991" (1991-xx-xx)
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EGM US 030.pdf

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Electronic Gaming Monthly (US) #30: "January 1992" (199x-xx-xx)
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ACE UK 37.pdfACE UK 37.pdf

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ACE (UK) #37: "October 1990" (1990-xx-xx)
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  • Computer & Video Games (UK) #107: "October 1990" (1990-09-16)[13]
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CVG UK 108.pdfCVG UK 108.pdf

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Computer & Video Games (UK) #108: "November 1990" (1990-10-16)
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  • ACE (UK) #38: "November 1990" (1990-xx-xx)[14]
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Sega Power (UK) #13: "December 1990" (1990-xx-xx)
also published in:
  • ACE (UK) #39: "December 1990" (1990-xx-xx)[15]
  • Computer & Video Games (UK) #109: "December 1990" (1990-11-16)[16]
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Sega Power (UK) #14: "January 1991" (199x-xx-xx)
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  • Raze (UK) #3: "January 1991" (1990-11-29)[17]
  • Computer & Video Games (UK) #110: "January 1991" (1990-12-15)[18]
  • Raze (UK) #4: "February 1991" (1991-12-20)[19]
  • Raze (UK) #5: "March 1991" (1991-01-31)[20]
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CVG UK 111.pdf

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Computer & Video Games (UK) #111: "February 1991" (1991-01-16)
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CVG UK 113.pdf

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Computer & Video Games (UK) #113: "April 1991" (1991-03-16)
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  • Computer & Video Games (UK) #114: "May 1991" (1991-04-14)[21]
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CVG UK 122.pdfCVG UK 122.pdfCVG UK 122.pdfCVG UK 122.pdf

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Computer & Video Games (UK) #122: "January 1992" (1991-12-15)
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Computer & Video Games (UK) #126: "May 1992" (1992-04-15)
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CVG UK 157.pdf

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Computer & Video Games (UK) #157: "December 1994" (1994-11-15)
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Player One (FR) #1: "Septembre 1990" (1990-xx-xx)
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  • Joystick (FR) #9: "Octobre 1990" (1990-xx-xx)[22]
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Joystick (FR) #27: "Mai 1992" (1992-xx-xx)
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  • Joystick (FR) #29: "Juillet/Août 1992" (1992-xx-xx)[23]
  • Joypad (FR) #9: "Juin 1992" (1992-xx-xx)[24]
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Power Play (DE) #10/90 (1990-09-14)
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PowerPlay DE 033.pdf

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Power Play (DE) #12/90 (1990-11-16)
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  • Power Play (DE) #2/91 (1991-01-18)[25]
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Gamers DE 1992-01.pdf

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Gamers (DE) #1/92: "Februar/März 1992" (1992-xx-xx)
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VideoGames DE 1992-11.pdf

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Video Games (DE) #11/92 (1992-10-28)
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Hobby Consolas (ES) #2: "Noviembre 1991" (1991-xx-xx)
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Hobby Consolas (ES) #7: "Abril 1992" (1992-xx-xx)
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Hobby Consolas (ES) #9: "Junio 1992" (1992-xx-xx)
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Hobby Consolas (ES) #12: "Septiembre 1992" (1992-xx-xx)
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  • Mega Force (ES) #5: "Septiembre 1992" (1992-xx-xx)[30]
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Hobby Consolas (ES) #13: "Octubre 1992" (1992-xx-xx)
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Hobby Consolas (ES) #14: "Noviembre 1992" (1992-xx-xx)
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  • Hobby Consolas (ES) #15: "Diciembre 1992" (1992-xx-xx)[32]
  • Hobby Consolas (ES) #16: "Enero 1993" (199x-xx-xx)[33]
  • OK Consolas (ES) #12: "xxxx 1992" (1992-xx-xx)[34]
  • Micromanía (Segunda Epoca) (ES) #56: "Enero 1993" (199x-xx-xx)[35]
  • Micromanía (Segunda Epoca) (ES) #57: "Febrero 1993" (1993-xx-xx)[36]
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Micromania ES 060.pdfMicromania ES 060.pdfMicromania ES 060.pdf

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Micromanía (Segunda Epoca) (ES) #60: "Mayo 1993" (1993-xx-xx)
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Micromanía (Segunda Epoca) (ES) #61: "Junio 1993" (1993-xx-xx)
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TodoSega ES 09.pdfTodoSega ES 09.pdf

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Todo Sega (ES) #9: "Diciembre 1993" (1993-xx-xx)
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  • Micromanía (Segunda Epoca) (ES) #68: "Enero 1994" (199x-xx-xx)[37]
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HobbyConsolas ES 037.pdfHobbyConsolas ES 037.pdf

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Hobby Consolas (ES) #37: "Octubre 1994" (1994-xx-xx)
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K IT 22.pdf

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K (IT) #22: "Novembre 1990" (1990-xx-xx)
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  • K (IT) #23: "Dicembre 1990" (1990-xx-xx)[38]
  • Guida Video Giochi (IT) #16: "Novembre 1990" (1990-xx-xx)[39]
  • Guida Video Giochi (IT) #17: "Dicembre 1990" (1990-xx-xx)[40]
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K IT 24.pdf

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K (IT) #24: "Gennaio 1991" (199x-xx-xx)
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  • K (IT) #26: "Marzo 1991" (1991-xx-xx)[42]
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K IT 27.pdf

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K (IT) #27: "Aprile 1991" (1991-xx-xx)
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Mega Force (PT) #1: "Junho 1993" (1993-xx-xx)
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MegaForce PT 01.pdf

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Mega Force (PT) #1: "Junho 1993" (1993-xx-xx)
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Mega Force (PT) #3: "Agosto 1993" (1993-xx-xx)
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  • Bestial! (PT) #3: "xxxx xxxx" (xxxx-xx-xx)[43]
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SegaForce SE 1992 01.pdf

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Sega Force (SE) #1/92 (1992-xx-xx)
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VideoGame BR 02.pdfVideoGame BR 02.pdf

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Video Game (BR) #2: "Abril 1991" (1991-xx-xx)

Retailers

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SegaVisions US 01.pdf

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Sega Visions (US) #1: "June/July 1990" (1990-xx-xx)
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SegaVisions US 01.pdf

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Sega Visions (US) #1: "June/July 1990" (1990-xx-xx)
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SegaVisions US 09.pdf

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Sears print advert in
Sega Visions (US) #9: "August/September 1992" (1992-xx-xx)
also published in:
  • Sega Visions (US) #10: "November/December 1992" (1992-xx-xx)[47]
  • Electronic Gaming Monthly (US) 1993 Video Game Buyer's Guide (199x-xx-xx)[48]
  • Sega Visions (US) #11: "February/March 1993" (199x-xx-xx)[49]

Pamphlets

Television advertisements

Artwork

References

  1. File:CVG UK 106.pdf, page 13
  2. File:ACE UK 37.pdf, page 51
  3. 3.0 3.1 File:K IT 22.pdf, page 21
  4. Interview: Joe Miller (2013-02-07) by Sega-16
  5. Fourth generation of video games
  6. 6.0 6.1 What's hot: Amiga or Sega?, Compute!, Issue 125 (January 1991), page A32
  7. Blitter Speed (Amiga Hardware Reference Manual)
  8. Before the Crash: Early Video Game History, page 173
  9. File:GamePro US 004.pdf, page 52
  10. File:GamePro US 005.pdf, page 22
  11. File:VG&CE US 11.pdf, page 40
  12. File:GamePlayers US 0106.pdf, page 26
  13. File:CVG UK 107.pdf, page 122
  14. File:ACE UK 38.pdf, page 36
  15. File:ACE UK 39.pdf, page 108
  16. File:CVG UK 109.pdf, page 46
  17. File:Raze UK 03.pdf, page 64
  18. File:CVG UK 110.pdf, page 86
  19. File:Raze UK 04.pdf, page 12
  20. File:Raze UK 05.pdf, page 12
  21. File:CVG UK 114.pdf, page 67
  22. File:Joystick FR 009.pdf, page 86
  23. File:Joystick FR 029.pdf, page 179
  24. File:Joypad FR 009.pdf, page 83
  25. File:PowerPlay DE 035.pdf, page 163
  26. File:HobbyConsolas ES 008.pdf, page 42
  27. File:HobbyConsolas ES 010.pdf, page 12
  28. File:HobbyConsolas ES 011.pdf, page 8
  29. File:HobbyConsolas ES 013.pdf, page 14
  30. File:MegaForce ES 05.pdf, page 22
  31. File:MegaForce ES 06.pdf, page 2
  32. File:HobbyConsolas ES 015.pdf, page 6
  33. File:HobbyConsolas ES 016.pdf, page 6
  34. File:OKConsolas ES 12.pdf, page 6
  35. File:Micromania ES 056.pdf, page 32
  36. File:Micromania ES 057.pdf, page 28
  37. File:Micromania ES 068.pdf, page 2
  38. File:K IT 23.pdf, page 2
  39. File:GuidaVideoGiochi IT 16.pdf, page 15
  40. File:GuidaVideoGiochi IT 17.pdf, page 9
  41. File:K IT 25.pdf, page 15
  42. File:K IT 26.pdf, page 64
  43. File:Bestial PT 03.pdf, page 32
  44. File:SegaForce SE 1992 02.pdf, page 36
  45. File:SegaForce SE 1993 01.pdf, page 23
  46. File:SegaForce SE 1993 02.pdf, page 17
  47. File:SegaVisions US 10.pdf, page 5
  48. File:EGM US BuyersGuide 1993.pdf, page 51
  49. File:SegaVisions US 11.pdf, page 7


Sega Mega Drive
Topics History | List of games | Magazine articles | Blast processing
Hardware Japan | North America | Europe | Brazil | Asia | South Korea | Australia
EZ Games | Heartbeat Personal Trainer | LaserActive | Mega Jet | Mega PC | Mega Play | Mega-Tech System | Nomad | Teradrive | "Consoles on a chip" | Unlicensed clones
Add-Ons Power Base Converter | Mega-CD | 32X (Mega-CD 32X) | Mega Modem | Demo System DS-16
Controllers Control Pad | Six Button Control Pad | 6 Button Arcade Pad | Arcade Power Stick 6B | Konami Justifier | MK-1470
Action Chair | Activator | Arcade Power Stick | Keyboard | MegaFire | Mouse | Mega Stick | Menacer | Remote Arcade System | Ten Key Pad
Accessories 4 Way Play | Cleaning System | Control Pad Extension Cord | Genesis Speakers | Region converter cartridges | Mega Terminal | Miracle Piano Teaching System | Nomad PowerBack | RF Unit (Mega Drive 2) | SCART Cable (Mega Drive 2) | Stereo Audio Video Cable | Team Player | Video Monitor Cable
Network services Sega Channel | Sega Meganet (Sega Game Toshokan | Mega Anser) | Tectoy Mega Net | Telebradesco Residência | XB∀ND
Development tools ERX 308P | ERX 318P | Sprobe | SNASM68K | SNASM2 (Mega Drive) | SNASM2 (32X)
Unreleased Floppy Disk Drive | Mega Play 1010 | Sega VR | Video Jukebox
Sega Home Video Game Systems
83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11
SG-1000 SG-1000 II Mega Drive Mega Drive II
SC-3000 Mega-CD Mega-CD II Genesis 3
Sega Mark III 32X Dreamcast
Master System Master System II
AI Computer Game Gear
Saturn
Pico Beena