Puyo Puyo (c) 1992 Sega.
An incredibly addictive and original puzzle game in which players must form chains of four or more beans (known as 'Puyos') of the same colour, causing them to disappear. The player can hinder his or her opponent (either the machine, or a second human player) by forming Puyo combinations; this is because whenever a player forms a successful chain and removes some of his or her Puyos, 'junk' Puyos fall into the opponent's play area, and as Junk Puyos are transparent, they cannot be used to form a chain and can only be destroyed when a nearby chain is created.

>>> TECHNICAL DETAILS
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Sega System C2 hardware
Main CPU : 68000 (@ 8.948862 Mhz)
Sound Chips : YM3438 (@ 7.670453 Mhz), SN76496 (@ 3.579545 Mhz), UPD7759 (@ 640 Khz)
Screen orientation : Horizontal
Video resolution : 320 x 224 pixels
Screen refresh : 60.00 Hz
Palette colors : 2048
Players : 2
Control : 8-way joystick
Buttons : 1

>>> TRIVIA
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Developed by Compile.
Released in October 1992.
Puyo Puyo is Japanese onomatopoiea for the sound that a rather plump person might make.
Puyo Puyo was originally released by Compile in 1991 for the MSX2 under the name Puyo Puyo. It was soon followed by a version for the Nintendo Famicom Disk Drive called 'Puyo Puyo Disk Drive' (featured characters from the 1989 RPG Madou Monogatari, also made by Compile). Puyo Puyo only really became popular when it was released as an arcade game in 1992. This was the first version that included a one player story mode, in which the human player plays against computer opponents of increasing difficulty. This feature was an immediate success because it allowed players to play by themselves. Future versions of Puyo Puyo for home systems also included this feature (see 'Ports' section for more info).
For fanatics, here is the full cast :
Silvana
Skeleton
Blue Ghost
Mummy
Dragon Woman
Goby Captain,
Small Foot
Dark Elf
Scorpion Man
Johnny
Zombie
Witch
Elephant
Lord
Devious
Max Minotaur
Lulu
Dark Prince
Carbuncle

>>> GAME SERIES
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1. Puyo Puyo (1991, MSX2)
2. Puyo Puyo Disk Drive (1991, Nintendo Famicom Disk)
3. Puyo Puyo (1992)
4. Puyo Puyo 2 (1994)
5. Super Nazo Puyo - Ruruu no Ruu (1995, Nintendo Super Famicom)
6. Super Nazo Puyo Tsuu - Ruruu no Tetsuwan Hanjouki (1996, Nintendo Super Famicom)
7. Puyo Puyo Sun (1996)
8. Puyo Puyo Da! (1999)
9. Puyo Puyo 4 - Puyo Puyo Party (1999, Sega Dreamcast)
10. Puyo Puyo Fever (2003)
11. Puyo Puyo Fever 2 [SLPM 66104] (Nov.2005, Sony PlayStation 2)
12. Kidou Gekidan Harouza Haro Ichiza - Haro no Puyo Puyo (2005, Nintendo Game Boy Advance)
13. Puyo Puyo! 15th Anniversary (2006, Nintendo DS)

>>> GAME PORTS TO OTHER SYSTEMS
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* Consoles :
Sega Mega Drive (1992)
Sega Game Gear (1993, 'Puzlow Kids')
Nintendo Famicom (1993)
Nintendo Super Famicom (1993, 'Super Puyo Puyo')
NEC PC-Engine Super CD-ROM2 (1994, 'Puyo Puyo CD')
Nintendo Game Boy (1994)
Sony PlayStation (2000, 'Puyo Puyo Box')
* Computers :
NEC PC-9801 (1993)
FM Towns PC (1994)
Sharp X68000 (1994)
PC [MS Windows 95] (1995)
* Others :
Mobile phones (2001)

>>> OTHER GAME RESOURCES
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Game's rom.