Dr. Robotnik's Mean Bean Machine is a falling-block puzzle game developed by Compile and published by Sega for the Genesis in North America in December 1993. It is a Westernized version of Compile's Puyo Puyo, which first appeared on the MSX2 in 1991, with the cast replaced by characters from the Adventures of Sonic the Hedgehog cartoon.
Dr. Robotnik turns the people of Beanville into robots with his Mean Bean-Steaming Machine, and the player, as Has Bean, fights through his dungeons. Four or more beans of one colour vanish, chains drop grey refugee beans on the opponent, and whoever overflows the board loses. Scenario Mode has 13 increasingly tough computer opponents.
Game Gear and Master System versions followed in 1993 and 1994; they are adapted from Nazo Puyo and add a Puzzle Mode. The game has since appeared in many Sonic compilations and on Wii Virtual Console (2006), Steam (2010) and Nintendo Switch Online (2021).1
Names and releases
| Region | Title on the box | Platform | Date | Publisher | Src |
|---|---|---|---|---|---|
| NA | Dr. Robotnik's Mean Bean Machine | Genesis | December 1993 | Sega | 1 |
| NA | Dr. Robotnik's Mean Bean Machine8-bit adaptation of Nazo Puyo | Game Gear | December 1993 | Sega | 1 |
| EU | Dr. Robotnik's Mean Bean Machine | Genesis | Jan 21, 1994 | Sega | 1 |
| EU | Dr. Robotnik's Mean Bean Machine | Game Gear | March 1994 | Sega | 1 |
| EU | Dr. Robotnik's Mean Bean Machine | Master System | March 1994 | Sega | 1 |
| WW | Sonic Mega CollectionGameCube compilation | Other | 2002 | Sega | 1 |
| WW | Sonic Mega Collection PlusCompilation, also Xbox; includes the Game Gear version | PlayStation 2 | 2004 | Sega | 1 |
| WW | Dr. Robotnik's Mean Bean MachineVirtual Console | Wii | 2006 | Sega | 1 |
| WW | Sonic's Ultimate Genesis CollectionAlso PS3; Sega Mega Drive Ultimate Collection in PAL regions | Xbox 360 | 2009 | Sega | 1 |
| WW | Dr. Robotnik's Mean Bean MachineSteam | Windows | 2010 | Sega | 1 |
| WW | Dr. Robotnik's Mean Bean MachineVirtual Console (Game Gear version) | Nintendo 3DS | June 2013 | Sega | 1 |
| WW | Sega Genesis ClassicsAlso PS4 and Xbox One; Sega Mega Drive Classics in PAL regions | Switch | 2018 | Sega | 1 |
| WW | Dr. Robotnik's Mean Bean MachineGenesis version on Nintendo Switch Online | Switch | 2021 | Nintendo | 1 |
| WW | Sonic Origins PlusIncludes the Game Gear version | Other | Jun 23, 2023 | Sega | 1 |
Also known as: Dr. Robotnik and His Mean Bean Machine EU1Dr. Eggman's Mean Bean Machine JP1
Box art by region
NA Dr. Robotnik's Mean Bean Machine 
EU Dr. Robotnik's Mean Bean Machine
Box art © its publishers, shown to identify each release. Scans: libretro-thumbnails.
Version differences
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ContentGenesis
The Genesis game is a Westernized Puyo Puyo: Sega swapped the original cast for Sonic characters, mostly from the 1993 Adventures of Sonic the Hedgehog cartoon, reportedly fearing Western players would not take to the originals. Puyo Puyo's Carbuncle stays on as Has Bean.1
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GameplayGame GearMaster System
The Game Gear and Master System versions add a Puzzle Mode with set bean layouts to clear; the Genesis version has no such mode.1
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ContentGame GearMaster System
The 8-bit versions are adapted from Compile's Japanese Nazo Puyo rather than ported directly from the Genesis game.1
Where to play legally today
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Nintendo Switch Online Subscription
Dr. Robotnik's Mean Bean Machine (SEGA Mega Drive - Nintendo Switch Online)
Mega Drive/Genesis version
Checked: 2026-10-132nintendo.com
Reception
GameRankings averaged 75%. Computer and Video Games and Mega each gave it 90% for its modes and addictive play, while critics also pointed to the difficulty and the password save system; Eurogamer called it a fairly unapologetic reskin of Puyo Puyo. Mega Zone put it in its Top 50 Games in History in 1995.1
In lists
Sources
Checked: 2026-10-13Text reviewed: 2026-10-13
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