1. Game Genie Sega Genesis Mini
2. Game Genie Sega Genesis Sonic 2
3. Game Genie Sega Genesis Online

Game Genie released for Sega Mega Drive and Sega Genesis. Recorded using RetroCopy, the best Sega Me.

• The SNES version. A Game Genie is a cheating device that patches the ROM of a game to allow for various benefits, challenges, or unused items. It was released for several systems, including the NES, Game Boy, SNES, Genesis/Mega Drive, and Game Gear.
• Game Genie (Genesis) Game Genie is a cartridge that lets you cheat the game by using codes. It is basically like the Action Replay on the Nintendo Gamecube or on the Nintendo DS, or Gameshark for the GBA. Game Genie was also released on various other consoles such as the NES, SNES, Master System, and more.
• El Viento is a 2D platform game released on the Sega Genesis in 1991, it is part of a trilogy of Earnest Evans and Annet Myer games, the other two being ‘Earnest Evans’ and ‘Anett Futatabi’. The game saw release in the USA and Japan, however a UK release by Ubisoft was cancelled.

A Game Genie is a cheating device that patches the ROM of a game to allow for various benefits, challenges, or unused items. It was released for various systems, including the NES, Game Boy, SNES, Genesis/Mega Drive, and Game Gear. It sold over five million units worldwide, and paved the way for later cheating devices such as the CodeBreaker and GameShark.

Each Game Genie came with a book filled with codes for then-current games, and people could subscribe to a mailing list for updated codes. Thanks to the internet, you can find codes through a simple Google search or dedicated sites like GameGenie.com.

Later versions of Game Genie for Nintendo systems included the ability to let the device's changes be undetected by checksums Nintendo had added to later games for this specific purpose (introduced during its lawsuit against Galoob, which the Big N lost). Sega, on the other hand, heartily endorsed it.

• 1NES

NES

Code Format

An overview on the code format for the NES version can be found at romhacking.net.

Download

According to Zophar, the NES version is in the public domain, and can be downloaded here (a disassembly is also available). Emulation has allowed Game Genie (usually combined with Pro Action Replay) to be 'connected' to the console at all times, making the ROMs little more than historical artifacts.

Hardware

• NES version.

• Genesis version.

• SNES version.

• Game Boy version.

In Action

• NES version.

• Genesis version.

• SNES version.

• Game Boy version.

While most of us probably just boot up an emulator to try those MegaDrive games that were never released in our native countries, there are sure to be some retro gamers that insist on playing the real cartridges on the real machine. I’ve had a couple of people email me recently about how to play Genesis imports, so I thought I would compile some answers and share them with everyone.

What Keeps Us From Playing Imports?

The cartridge slot on the Genesis 1, 2, and CDX is different from that of the Japanese Megadrive. Japanese cartridges are rounded on the ends, so you won’t be able to get a Japanese cartridge to fit into the slotted and narrower cart slot on a Genesis 1/2/CDX. This can be taken care of by either using a pass-through cartridge or removing the tabs in your system’s cartridge slot. The software in the games also have some region lock-out code to keep them from playing. So naturally, we need to find away around these limitations.

What Importing Solutions Are There?

In the the 16-bit era, there were a number of solutions to help play Genesis imports such as the Pro Action Replay, Universal Adapter, or Mega Key/Super Key, but a decade later these items are getting harder to find and more expensive. So what’s a budget-minded, import-hungry Genesis owner to do? If you grew up in the 16-bit era, I’m sure you remember a device know as the Game Genie. The Game Genie from Galoob is primarily known as a way to experiment with cheats for your games, but the Sega Genesis Game Genie also helps bypass regional lockouts for a number of games.

What’s The Catch?

The main disadvantage with the Game Genie method is that you will have to enter in some codes each time you want to play an import. If you will be frequently playing imports, you may want to look into one of the more expensive cart solutions or permenantly modding your system with a region switch. It’s also worth nothing that the Game Genie doesn’t work with the Majesco-released Genesis 3 model (much like many other accessories/add-ons).

What Game Genie Codes Are Available For Imports?

I’m glad you asked. Here are some of the more popular imports and their respective Game Genie codes…

Game Genie Sega Genesis Mini

Alien Soldier (EUR/JPN PAL, A version)
RECA-A6XJ
RECA-A6XL
RECT-A60J

Alien Soldier (JPN NTSC, B version)
REBT-A6XN
REBT-A6XR
RECA-A60R

Bare Knuckle III
AABT-AA5L
DJBT-AADN
RYDA-A608
AJDA-AAHA

Contra: The Hard Corps (JPN)
CTBT-AA6J
A2BT-AA72
BBRA-AA3Y

Golden Axe III
BT7T-CA9E
AA7T-CA9R

Monster World IV
HT2T-BAEG
2A2T-AAEJ
RE2T-A6YL

Pulseman
LAXT-AA5L

Rockman Megaworld (Mega Man: The Wily Wars JPN)
V2AT-BMEJ
EAAT-BL1T
REBT-A6XL

Thunder Force IV
AABT-AA4J
AACA-ACBC
16CA-ACBY
9ACA-A60W
EACA-ANGY

Yuu Yuu Hakusho Makyou Toitsusen
9T9T-BCF8
EE9T-AAGA
BE9T-B98C
RE9T-A60E
BVBT-AA3A

Possible Issues With PAL Games

If you’re in the US and want to play some European cartridges, there are a couple other things to keep in mind. PAL games have a 50/60hz lockout or territory lockout in place. Many PAL versions of games are no different from their US counterparts, which is why they play at a slower speed and with black bars at the top and bottom of the screen on European consoles. These games will play without trouble on US consoles. Other games (of which the European version of Alien Soldier is one) have been adapted to the PAL format, and thus will run too fast on US consoles (about 70hz).

Game Genie Sega Genesis Sonic 2

Where To Find A Game Genie? How Much?

Since Game Genies are pretty common you can find them just about anywhere that sells vintage games. The most accessible places online to find them is obviously eBay and Amazon.com You can usually find a handful of them listed at any given time and they usually go for $10 or less including shipping. Not a bad deal at all.
Find a Genesis Game Genie on eBay
Find a Genesis Game Genie on Amazon.com

Game Genie Sega Genesis Online

What About Sega CD Games?

There are a few Sega CD imports that are worthwhile, so I will cover that topic very soon.