The outro runs too slowly. In the Mega CD original this is to be somewhat expected because big cuts were made to the graphical quality.
Sonic Jam - this is the correct speed. Though no games have ever matched it.
Mega CD - too slow. But I think that might be partly due to the hardware. It's also missing a scene (and might skip a few frames?!) so no point in caring about this one.
XBLA (the US ending because nobody has uploaded the JP one to YouTube yet) - a hybrid of the two, but still too slow. I imagine it was slowed down to keep it accurate... but as you can see, there's no point in being accurate because the previous two versions of the game cut things, so I propose speeding it up to Sonic Jam-levels


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