Sonic the Hedgehog (16-bit) (prototype)/Hidden content

Back to: Sonic the Hedgehog (16-bit) (prototype).

Level select

Enabled by default. Simply press + on the title screen.

Edit mode

Enabled by default. Highlight a Zone in the level select and press and hold .

Unused content

Art

Art	Description
	"U"/magnet block for the Special Stage, located at $651FE.
	Skull block for the Special Stage, located at $6512E.
	Smoke effects, located at $2656E. Their VRAM spot would be overwritten by the Lamp Post in the final.

Objects

Placeable in edit mode

Art	Description
	Static monitor that does nothing when broken.
	The infamous Splats enemy, placeable in Marble Zone. This Badnik is fully coded in this build, and when placed it continually bounces forward, only changing direction when it hits a wall. While it uses Sonic's palette line in the object list, it uses the second palette line when placed.
	Roller enemies for Spring Yard Zone. They are fully functional, and use the second palette line, making them look purple and yellow.
	Seesaws for Star Light Zone. While fully functional, they don't have the spike ball that helps propel Sonic into the air.

Others

Art	Description
	The Giant Ring that would transport Sonic to the Special Stage. Its coding is different in that once Sonic touches it, instead of disappearing instantly, he sparkles for a couple of seconds and then "warps" away. The coding is incomplete beyond this point, so Sonic reappears a couple of seconds later. This "warping" code remains unused in the final game.
	Burrobot enemies for Labyrinth Zone, which exist in the object table but go unreferenced. They are fully functional.
	Jaws enemies for Labyrinth Zone, which exist in the object table but go unreferenced. They are fully functional.
	Ball Hog, based on its original front-facing design seen in prerelease material, going unreferenced in the object table. They move from side to side, periodically stopping to drop bombs directly downward.