Translations:Proto:Sonic & Knuckles/Sonic 3C 0517/17/en

Sky Sanctuary Zone

• After the Metropolis Zone boss has been defeated, the balloons don't pop until they reach the ground.
• After defeating Mecha Sonic at the end of Sonic/Tails' Act, the results tally now appears, but Sonic and Tails won't do their victory poses and can still be controlled. Afterwards, the game cuts straight to Death Egg Zone without a cutscene.
• Knuckles' Act does not have any rings, and the teleporter is absent.
• When entering Act 2 with Sonic and Tails, Mecha Sonic has a glitch where there's an invisible wall in between the fighting area. When Mecha Sonic is defeated, the game acts like Act 1 was completed and doesn't continue to the next level.
• Also, when entering Act 2 with Sonic and Tails, Tails is able to jump behind the Floating Island sprite.
• Mecha Sonic is missing sound effects.
• The Doomsday Zone music does not play for Super Mecha Sonic. The final boss theme just continues instead.
• Mecha Sonic also freaks out when Tails is used.
• When Knuckles defeats Mecha Sonic, the appropriate ending plays according to whether Knuckles has all the Chaos Emeralds or not. However, there is no credits sequence, and Angel Island reaches the sea/stratosphere much more quickly. Afterwards, the game doesn't go anywhere, requiring you to pause and return to the Level Select.