Sonic & Knuckles (prototype; 1994-05-25)/Hidden content

Back to: Sonic & Knuckles (prototype; 1994-05-25).

Level select

Enabled by default. Scroll down and select "Sound Test" on the title screen.

Edit mode

Enabled by default. Hold + while selecting a level.

All Chaos Emeralds

Play sounds 02, 04, 06, 08 in the sound test. A Chaos Emerald sound will confirm correct entry.

Night mode

Enabled by default. Hold + when selecting a level.

Unused content

Art

Art	Description
	An earlier version of Sonic's falling pose for the Sonic & Knuckles title screen, found at $D36C0. The shading for Sonic's eyes and chest is unpolished.
	Work-in-progress title screen frames for Sonic & Knuckles. Like the above graphic, Sonic's eyes and chest are lacking polish in the shading, while Knuckles is mostly finalised save for a few pixels on the shoes. The placeholder numbers for the animated tiles can also be seen in these frames. The fourth frame in its unfinished state can also be seen on the MTV television show, Rock the Rock.
	An earlier version of the Sonic & Knuckles logo for the title screen, found at $D4D90.
	An earlier version of the Sonic & Knuckles logo for the endings, found at $165240. Pro Action Replay code FFFFAE:0001 will force the game to display this logo in Knuckles' ending instead of the Sonic the Hedgehog 3 logo.
	A unique ending pose for Sonic that goes completely unused. No mappings appear to exist for this graphic, so its assembly here is based on guesswork.