10 Best Secret Video Game Bosses You Must Find

10. Akuma - Super Street Fighter II

We'll kick this list off with one of the earliest and best examples of secret bosses, way back before the days of Capcom's nefarious practice of purchasing extra characters took over.

Akuma, or Gouki in Japan, is the brother of Ryu and Ken's master, Gouken. Seduced by the powers of the Dark Hadou that eventually corrupted, he discarded humanity and become the malevolent force we all know as Akuma. An anti-hero to Ryu in a way: whilst Ryu wants to test his might around the world, Akuma seeks to crush anyone that may challenge him.

This is the meta-test to unlocking him in battle: Akuma won't appear for anyone struggling their way through the world warriors. Like a fussy date, he won't show for anything less than perfect. Quite literally, as you need a few of those (and some super endings) to have him replace M. Bison in the final fight. Y'know, instead of the already double 'ard M. Bison.

It was a true test of strength and skill back in the early days of Street Fighter. Now you can just get him with a season pass.