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website/content/museum/sega-wondermega.md
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yann64andClaude Opus 5.5 b274874139 All machines linked to their forum thread (full comment import) 
1,289 discussions, 9,527 archived comments; pages no longer carry the comments themselves.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ
2026-10-13 17:26:43 +02:00

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---
title: Sega Wondermega
categories:
- Consoles
params:
name: Wondermega
image: /media/museum/photos/sega_wondermega_1s.jpg
logo: /media/museum/logos/sega_wondermega_logo.gif
company: /companies/sega
company_name: Sega
tabs:
- photos
- hardware
- connectors
- software
- emulators
- links
- videos
forum_thread: 1204
photos:
- title: WONDERMEGA
subtitle: ''
text: ''
image: /media/museum/photos/sega_wondermega_1.jpg
hardware:
- title: THE ACTION CHAIR
subtitle: ''
text: |-
The action chair is a rare item. Connected to a Genesis/Megadrive, it acts as a controller! When you lean backward/forward it tells the Genesis to go down/up and when you lean left/right it tells to go left/right. Two handles on each side offer two buttons each, resulting in 4 buttons : START, SELECT, A & B.
The Action Chair is basically a chair mounted on a controller. It is thus possible to play all games with it, though it is more convenient to play games like After Burner II, Space Harrier II, Super Thunder Blade, Hang on, Road Rash, Super Monaco GP, etc.
Thanks to **Spycal** for this picture
image: /media/museum/hardware/sega_action-chair.jpg
- title: DOCUMENTATION
subtitle: Page 1
text: Thanks to **Spycal** for this picture
image: /media/museum/hardware/sega_action-chair_doc_1.jpg
- title: DOCUMENTATION
subtitle: Page 2
text: Thanks to **Spycal** for this picture
image: /media/museum/hardware/sega_action-chair_doc_2.jpg
connectors:
- title: 3 BUTTONS JOYSTICK
subtitle: ''
text: |-
The joystick port uses a multiplexing technique based on the 74HC157 chip (high-speed cmos quad 2-line to 1-line multiplexer) built-in the controller. There are 2 inputs for each 4 outputs of the chip. The console can determine which function is read by setting the *select* signal to 0v (logic low) or +5v (logic high).
**Fun fact :** Atari 2600 joysticks could be used in the Genesis joystick ports. The button of the Atari joystick was the "B" button on a Sega Genesis, and the direction buttons are fully functional.
image: /media/museum/connectors/genesis_joystick.gif
screenshots:
- title: NEW-ZEALAND STORY
subtitle: Screenshot
text: ''
image: /media/museum/software/sega_md_ss_new-zealand-story.gif
- title: ALADDIN
subtitle: 1 - Title screen
text: ''
image: /media/museum/software/sega_md_ss_aladdin_1.gif
- title: ALADDIN
subtitle: 2 - screenshot
text: ''
image: /media/museum/software/sega_md_ss_aladdin_2.gif
- title: PGA TOUR GOLF III
subtitle: 1 - Title screen
text: ''
image: /media/museum/software/sega_md_ss_pga-tour-golf-3_2.gif
- title: PGA TOUR GOLF III
subtitle: 2 - screenshot
text: ''
image: /media/museum/software/sega_md_ss_pga-tour-golf-3_1.gif
- title: COOL SPOT
subtitle: 1 - Title screen
text: ''
image: /media/museum/software/sega_md_ss_cool-spot.gif
- title: COOL SPOT
subtitle: 2 - screenshot
text: ''
image: /media/museum/software/sega_md_ss_cool-spot_2.gif
- title: SUPER HANG ON
subtitle: Screenshot
text: ''
image: /media/museum/software/sega_md_ss_super-hang-on_1.gif
- title: SONIC, THE HEDGEHOG
subtitle: 1 - Title screen
text: ''
image: /media/museum/software/sega_md_ss_sonic_1.gif
- title: SONIC, THE HEDGEHOG
subtitle: 2 - screenshot
text: ''
image: /media/museum/software/sega_md_ss_sonic_2.gif
- title: OUT RUN
subtitle: 1 - Title screen
text: ''
image: /media/museum/software/sega_md_ss_outrun_1.gif
- title: OUT RUN
subtitle: 2 - screenshot
text: ''
image: /media/museum/software/sega_md_ss_outrun_2.gif
- title: ULTIMATE MORTAL KOMBAT 3
subtitle: 1 - Title screen
text: ''
image: /media/museum/software/sega_md_ss_mortal-kombat-3_1.gif
- title: ULTIMATE MORTAL KOMBAT 3
subtitle: 2 - screenshot
text: ''
image: /media/museum/software/sega_md_ss_mortal-kombat-3_2.gif
- title: FLASHBACK
subtitle: 1 - Title screen
text: ''
image: /media/museum/software/sega_md_ss_flashback_1.gif
- title: FLASHBACK
subtitle: 2 - screenshot
text: ''
image: /media/museum/software/sega_md_ss_flashback_4.gif
- title: FLASHBACK
subtitle: 3 - screenshot
text: ''
image: /media/museum/software/sega_md_ss_flashback_3.gif
- title: FLASHBACK
subtitle: 4 - screenshot
text: ''
image: /media/museum/software/sega_md_ss_flashback_2.gif
- title: GOLDEN AXE
subtitle: 1 - Title screen
text: ''
image: /media/museum/software/sega_md_ss_golden-axe_1.gif
- title: GOLDEN AXE
subtitle: 2 - screenshot
text: ''
image: /media/museum/software/sega_md_ss_golden-axe_2.gif
- title: STREET FIGHTER II PLUS
subtitle: ''
text: ''
image: /media/museum/software/sega_md_ss_street-fighter.gif
- title: SONIC 2
subtitle: 1 - Title screen
text: ''
image: /media/museum/software/sega_md_ss_sonic2_1.gif
- title: SONIC 2
subtitle: 2 - screenshot
text: ''
image: /media/museum/software/sega_md_ss_sonic2_2.gif
- title: SONIC 2
subtitle: 3 - screenshot
text: ''
image: /media/museum/software/sega_md_ss_sonic2_3.gif
- title: SONIC 3
subtitle: 1 - Title screen
text: ''
image: /media/museum/software/sega_md_ss_sonic3_1.gif
- title: SONIC 3
subtitle: 2 - screenshot
text: ''
image: /media/museum/software/sega_md_ss_sonic3_2.gif
emulators:
- title: Gens
url: http://gens.consolemul.com/
platform: Windows
text: Excellent Genesis emulator
- title: KEGA
url: http://www.eidolons-inn.net/kega/
platform: Windows
text: Kega is a Sega SG1000, SC3000, Master System, Game Gear, Genesis/Megadrive and SegaCD/MegaCD emulator for Win9x/ME/2000/XP
- title: Wgens
url: http://emu.makii.pl/pokazpliki.php3?tematy=smd
platform: Windows
text: Sega Megadrive emulator
links:
- title: GameFAQs
url: http://www.gamefaqs.com/console/genesis/
text: All sort of FAQs related to the Genesis / megadrive (games, hardware, etc.)
- title: GameWinners.com
url: http://www.gamewinners.com/GEN/
text: Great cheat codes archive !
- title: GAMEX.COM
url: http://www.gamesx.com/avpinouts/genesisav.htm
text: Genesis / Megadrive video pinouts
- title: Genesis Collective
url: http://www.genesiscollective.com/
text: Giant software database, full of useful info
- title: IGN.COM
url: http://codes.ign.com/
text: A LOT of Genesis game codes
- title: Megadrive FAQ
url: http://www.classicgaming.com/museum/faqs/megadfaq.shtml
text: Megadrive FAQ hosted by Classicgaming.com
- title: Official 32X pages from Sega!
url: http://www.sega.co.jp/archive/segahard/32x/
text: Excellent. Lot of info here (specs, pix, soft lists, ads,etc.)
- title: Official Mega Drive pages from Sega!
url: http://www.sega.co.jp/archive/segahard/md/
text: Excellent. Lot of info here (specs, pix, soft lists, ads,etc.)
- title: Official Sega CD pages from Sega!
url: http://www.sega.co.jp/archive/segahard/mcd/
text: Excellent. Lot of info here (specs, pix, soft lists, ads,etc.)
- title: SEGA CD FAQ
url: http://www.classicgaming.com/museum/faqs/segacdfaq.shtml
text: Sega CD FAQ hosted by classicgaming.com
- title: The Dump
url: http://www.classicgaming.com/thedump/genesis/
text: Box arts, covers, reviews and more
- title: The McDonald Family Homepage
url: http://www.billnkaz.demon.co.uk/segalist.htm
text: How to build a RGB to D-SUB video cable for your Genesis / Megadrive 1. Also a big cheat file is available
- title: Video Game Music Archive
url: http://www.vgmusic.com/music/console/sega/genesis/
text: Sega Genesis music files directory !!!
- title: Zophar's Domain
url: http://www.zophar.net/genesis.html
text: Nice emulator list & some interestinf game info to download
- title: Web Wiz CAPTCHA
url: http://www.webwizcaptcha.com
text: Sega dedicated newsgroup
videos:
- title: Sega Genesis TV commercial
url: https://www.youtube.com/watch?v=Nd-tH9fKuOo
text: 'Length: 30s'
related:
- /museum/sega-genesis
- /museum/sega-genesis-2
- /museum/sega-genesis-3
- /museum/sega-mega-drive
- /museum/sega-mega-drive-ii
- /museum/sega-nomad
oc_id: 1237
source:
url: https://web.archive.org/web/20221204121254/http://www.old-computers.com/museum/computer.asp?c=1237
date: '2022-12-04'
---
The Wondermega was released in 1992 as a joint development by Sega and JVC. It is similar to the Multi-Mega, being a combination of a [Mega Drive](/museum/sega-genesis/) and Mega CD, but with the added ability to function as a karaoke machine and improved sound thanks to JVC's new DSP. The system shipped with four karaoke programs and a compilation CD of four games. Two microphones can be connected to the system so users can sing along with CDs, or, thanks to a button on the machine, the CDs vocals can be muted allowing you to sing with just the music as a backing track.
In 1993 the WonderMIDI package was released. This allowed users to connect a MIDI keyboard the Wondermega to create sound effects and music, and included instructional software which could help people learn to play the piano. 1993 also saw a re-release of the system, with several small changes designed to reduce cost.
<table> <tr> <td></td> <td>We need more info about this console ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.</td> <td></td> </tr> </table>
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