Sonic the Hedgehog 3C (prototype 0408)/Hidden content
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|A set of Data Select level icons for the Sonic & Knuckles Zones, found in the ROM padding area at $23A3DE as well as in the normal ROM area. The S&K Zones were not implemented into the Data Select menu until the S&K 0525 prototype.
These icons have their own set of differences - Flying Battery Zone is still using its original icon from Sonic 3, Lava Reef Zone and Death Egg Zone's icons are earlier versions with different/less details, and Hidden Palace Zone's icon is missing entirely.
|An earlier version of the swinging pendulums found in Flying Battery Zone Act 2, found in the ROM padding area at $AE31A by Jorge. The base has a different design. Like the S&K Zone icons, these graphics also exist outside of the leftover data, but are impossible to see normally.|
|An earlier version of the abseiling pulleys in Sandopolis Zone, found in the ROM padding area at $AFB68. The hoist wheel has an almost entirely different design and the shading on the cable itself is less complex.|
|An earlier version of the Death Egg sprite seen at the end of Lava Reef Zone Act 2, found in the ROM padding area. It's using the colors of the enemy palette line ($01) and the shading differs in areas.|
|Earlier versions of the collapsing bridges in Sky Sanctuary Zone, found in the ROM padding area at $B2C46. Compared to the final, this design is more consistent with the look of the floating platforms.|
Sonic 3 ending leftovers
Big Arm cannot be fought in this prototype, but its data from Sonic the Hedgehog 3 remains intact and can be hacked back in to the game. Once restored, it can be fought and defeated as normal, and the ending from Sonic 3 will take place, followed by the credits. This time however, Knuckles can also get this ending, and uses all the correct poses until the giant Sonic sprite shows up, messing up Knuckles' palette. For some reason, the screen fades to the credits a slightly faster than it does for Sonic & Tails.
|Sonic the Hedgehog 3C (prototype 0408), prerelease version of Sonic the Hedgehog 3|