Thread:Metal Mario875/@comment-30300307-20170428155225/@comment-30300307-20170521051313

http://sonic.wikia.com/wiki/Sonic_the_Werehog

Before the final showdown with Dark Gaia, Dark Gaia re-absorbed the remaining power that Sonic had incidentally taken at the start of the game, stripping Sonic of his Werehog form for good.

I gotta admit you're the most unbiased Mario expert there is lol