Gear Works

From Sega Retro


GearWorks title.png

Gear Works
System(s): Sega Game Gear
Publisher: Sony Imagesoft
Genre: Puzzle

Number of players: 1
Release Date RRP Code
Sega Game Gear
$34.9534.95[2] T-93058
Non-Sega versions

Gear Works is a puzzle game for the Sega Game Gear. It was only released in North America, although a European release was planned.[3]


Gear Works GG, Cuckoo Clock.png

Cuckoo clock

Gear Works GG, Gameplay.png


Gear Works is a puzzle game where the player is tasked with rebuilding twelve clocks located in famous monuments throughout the world. To do this, the player must place gears on a grid filled with pegs in order to construct an unbroken train of gears from the rotating gear on the left side of the puzzle to the stationary gear on the right side of the puzzle.

Gears rotate when they are linked together properly. There are three sizes of gears, which can only be linked in specific combinations:

Combination Description
Gear Works GG, Combinations.png
A medium gear can be connected adjacent to a small gear.
Gear Works GG, Combinations.png
A medium gear can be linked diagonally to another medium gear.
Gear Works GG, Combinations.png
A large gear can be linked diagonally to a small gear.
Gear Works GG, Combinations.png
A large gear can be connected adjacent to another large gear.

Gears also come in three different colors: blue, green, and orange. Green gears can be connected together for bonus points, and orange gears are rusty and must be oiled to operate smoothly. Gears are given out one at a time with a random size and color, so the current gear may not fit into the chain that the player is building, forcing the player to build out separate segments to connect later. The next gear is shown in a window on the left side of the status area. Adjacent gears spin in opposite directions, and connecting more than two gears together jams them and prevents the mechanism from moving.

The engine becomes hotter as time passes; the engine temperature is indicated by a bar in the status area of the screen and acts as a time limit. Rusty or jammed gears also raise the temperature. Additionally, gremlin-like creatures called poffins appear to wander the grid. There are two types, a smaller one that can rust gears and a larger one that can break off pegs. The player has a toolbox containing tools that can be used a limited number of times per puzzle, including oil that can be used to lubricate rusty gears and a gun that can be used to shoot poffins.

The D-Pad moves a crosshair around the peg grid, 1 places a gear or uses an item on the selected location, and 2 allows the player to select a tool from the toolbox. The cursor changes to indicate the currently selected tool.

After completing a puzzle, the player is given a score, with points added for working gears placed and points subtracted for misplaced or non-working gears. Each of the twelve stages consists of multiple levels, and each level can contain more than one puzzle. The engine temperature is carried over between puzzles on the same level but resets on a new level. The player starts the game with three lives and must restart the current level at the cost of a life if the engine overheats. The game gives the player a password after completing each stage.


Pressing 2 opens the toolbox and pressing 1 uses the current tool. The game starts with 5 uses of each item (aside from placing gears, which has no limit).

Gear Works GG, Tools.png
Places the next gear on the puzzle. The size and color of the gear is chosen randomly. The cursor changes to indicate the size of the current gear. The cursor is usually white but changes to the color of the gear if it will connect to another gear if placed in the selected location. Placing a gear on top of a poffin pops it.
Gear Works GG, Tools.png
Blows up a previously placed gear so that a different gear can be placed on its peg. It also eliminates nearby poffins (but cannot target them directly).
Gear Works GG, Tools.png
Gun Sight
Shoots a poffin anywhere on the grid. There is a short delay between shooting and the shot landing.
Gear Works GG, Tools.png
Oil Can
Lubricates a rusty (orange) gear so that it turns freely.


Main article: Gear Works/Passwords.

Production credits

  • Producer: Nathan Rose
  • Tester: Jose Cruz
  • Olaf Olaffson, Lester Greenman, Peter Dille, Jeff Benjamin
  • Programming: Barry Costas, Colin Hughes
  • Graphics: Mark Anthony
  • Music: Peter Henning
  • Producer: Tony Love
In-game credits
Gear Works GG credits.pdf

Magazine articles

Main article: Gear Works/Magazine articles.

Promotional material

Print advert in Game Players (US) #0612: "Vol. 6 No. 12 December 1993" (1993-1x-xx)
also published in:
  • GamePro (US) #54: "January 1994" (199x-xx-xx)[5]

Physical scans

Sega Retro Average 
Publication Score Source
{{{{{icon}}}|L}} Division by zero.
Based on
0 review
Sega Retro Average 
Publication Version Score
GamePro (US) NTSC-U
Megablast (DE) NTSC-U
Mean Machines Sega (UK) NTSC-U
Sega Game Gear
Based on
3 reviews

Gear Works

Game Gear, US
GearWorks GG US Box Back.jpgNospine.pngGearWorks GG US Box Front.jpg
GearWorks GG US Cart.jpg
Gear Works GG US Manual.pdf

Technical information

ROM dump status

System Hash Size Build Date Source Comments
Sega Game Gear
CRC32 e9a2efb4
MD5 da9d059d844104d2a4d05f01aa4ff9fc
SHA-1 dc71c749c4a78e28922e10df645d23cc8289531f
128kB Cartridge (US)


Gear Works

GearWorks title.png

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