This puzzle game is based on Puyo Puyo for the Genesis. It was released on USA and Europe.

This DX EDITION has the following improvements:
- Sonic replaces Has-Bean (art by E-122-Psi).
- New and improved dialog for Dr. Robotnik and his 12 Robots.
- Red X marks are placed on the dungeon areas (aka player's boards) to indicate where you must NOT place a Bean.
- In OPTIONS, you can select to use the ORIGINAL dialog, or the DX EDITION dialog. You can also choose to display the USA or UK spelling of words (like color colour).
- In OPTIONS, you can activate Colorblind Mode. Support for: Tritanopia, Protanopia, and Deuteranopia.
- During SCENARIO MODE, the name of your opponent is displayed during battle.
- The SOUND TEST is available to select in OPTIONS.
- The MUSIC and VOICE tracks in the SOUND TEST each have a Track Name.
- The unused music is now used.
- The game supports SRAM to save HIGH SCORES, PASSWROD, and Options Settings.
- The Region Check has been disabled so it will run on any region Sega Genesis / Sega Mega Drive consoles.
- Changed the Serial Number in the header so a different Blue Sphere stage will be generated when connected to SONIC & KNUCKLES.
- Changed all the PASSWORDS.
- Added website link on SOUND TEST to: www.shc.zone
- Fixed a bug when entering a High Score so you can only select letters A to Z.
- Fixed a bug in SCENARIO MODE where the AI loses its ability to manually drop Beans if the other controller is holding left or right.
- Player 1's font is now blue, while Player's 2 font is now red.
- Other miscellaneous changes.

Database match: Dr. Robotnik's Mean Bean Machine (USA)
Database: No-Intro: Genesis (v. 20210226-213851)
File/ROM SHA-1: AA6B60103FA92BC95FCC824BF1675E411627C8D3
File/ROM CRC32: C7CA517F

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