Translations:Proto:Sonic the Hedgehog (Genesis)/39/en

|- | 1E || Ball Hog || Ball Hog's behavior is different from the final version. |- | 20 || Ball Hog bomb || A sub-object of Ball Hog, this round bomb falls straight down and explodes on impact with the ground turning into a unused explosion seen to be called in this prototype. |- | 2A ||Switch door|| A door that opens by pressing a switch. This object has a variant that is set up to use other tiles, has no collision, and doesn't react to switches. No valid graphics exist for it. In the final version, this ID is used for a one-way door object in Scrap Brain Zone. |- | 2C || Jaws || Used in the final, but not in the proto. In this build it uses Sonic's palette and can only swim to the left, never to return. Its sprite is loaded in Labyrinth Zone, but is allocated to the wrong VRAM address. |- | 2D || Burrobot || Used in the final, but not in the proto. In this build, Burrobot uses the second palette line instead of Sonic's. It also does not start buried in the ground. |- | 43 || Roller || Can be accessed via debug mode in Sparkling Zone. Also appears in the unused object layout for Sparkling Zone Act 1. It has different behavior compared to the final version.

• Uses the second palette line instead of Sonic's.
• Is completely invulnerable.
• Moves at a slower speed.
• Caterkiller's art is loaded over part of Roller's art in the final game, which causes one of the ball animation frames to appear glitched. This doesn't happen in the prototype as Caterkiller's art isn't loaded.
• Instead of making its entry by rolling on screen, it stands stationary until the player approaches it, to which it then takes off.
• Doesn't uncurl when it gets close to the player.

|- | 4A || Special Stage entry || This sub-object uses a special effect that was discarded from the final version. It allowed Sonic to enter a Special Stage after touching a giant ring. |- | 4B || Giant ring || Does not take you to Special Stages. |- | 4F || Splats || A scrapped enemy accessible via Debug Mode in Marble Zone. |- | 5E || Seesaw (SLZ) || Only accessible through Debug Mode. Unlike the final version, this object is missing the spiky ball that gives Sonic a boost to reach high places. |}