* The entrance of the TrueFinalBoss, just like in ''Turbo''.
* If you manage Perfects on the Shadaloo bosses and 4 bosses in the boss rush, you fight Sagat before Bison.
* The existence of this game at all, really. Mega Man's 25th anniversary was shaping up to be a complete bust, when the top brass of Capcom America were shown a fan game that would potentially be perfect for the event, seeing as how ''Franchise/StreetFighter'' was also celebrating 25 years. So they officially hired the fan, provided funding and support, and got the game finished and provided for free. And as of 2018 and the announcement of ''Videogame/MegaMan11,'' the game is still officially available.
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