The Batbrain, called Basaran (バサラン) in the Japanese Manual, is a bat-esque badnik found in Marble Zone. The Batbrains hang onto ceilings, then swoop down and fly around when approached, and then they come back to the ceiling. They can be easily destroyed by jumping.

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  Batbrain in Marble Zone.

Technical Information

Game	Object ID #	Code offset	Mappings offset	Compressed art offset	Subparameters
Sonic the Hedgehog (16-bit)	$55	$100A8	$10246	$38212 (Nemesis Format, 41 blocks)	$00

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Sonic the Hedgehog (16-bit)

Sonic 1 Main (GBA|2013|3D) Levels Enemies Bosses Bug List (Gen) Music: OSV / OST Level Maps Cheat Codes (Gen) Commercials Print Advertisements Magazine Articles Game Development Game Secrets (2013) 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 Scrapped Enemies and Obstacles: Splats Bosses: Green Hill Marble Spring Yard Labyrinth Star Light Final 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).