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From Sonic Retro

The Labyrinth Zone Boss is the fourth boss encountered in Sonic the Hedgehog. Unlike the other bosses in the game, the defeat strategy does not involve attacking Dr. Robotnik, but following him as he makes his escape in his Eggpod through an obstacle course as water begins to rise. However, it is possible to destroy Robotnik's machine for 1000 points.

Sonic the Hedgehog (16-bit)

Sonic 1 Main Article (Genesis) Levels Advertisements Enemies Bosses Bug List (Genesis) Cheat Codes (Genesis) Game Development Game Secrets Magazine Articles Music Level Maps SCHG

Levels: Green Hill Marble Spring Yard Labyrinth Star Light Scrap Brain Final Special Stage Advertisements: Think Fast Sega Hotline The Best Game Ever To see all print and TV advertisements, visit the Advertisements page. Enemies and Obstacles: Ball Hog Batbrain Bomb Burrobot Buzz Bomber Caterkiller Chopper Crabmeat Fire Statue Jaws Moto Bug Newtron Orbinaut Roller Spikes Bosses: Cheat Codes: From title screen Zone Select: +, select zone. Debug mode: +, hold until Sonic appears. Zone Select + Debug Mode: +, select zone, hold until Sonic appears (the extra is to force the cheat detection code to reset itself). Messed up Demo: While a demo is playing, hold ++. Sonic will be unable to jump, making him seem confused, lose his place, and possibly die. On all codes containing Cs, the Cs can be input anywhere during the sequence. For a list of all codes, see Cheat Codes:Sonic the Hedgehog (16-bit).