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Despite the nickname "Knuckle" favored by Japanese manuals, Knuckles' name was spelled "Knucles" on the character screen due to space limitations.
Contributed by Funland47
Despite the fact that the original Sonic Drift was only released in Japan, this game was still released in the US as a sequel without any change in the title whatsoever (probably confusing many American gamers).
Contributed by Funland47