Resident Evil 6 on Switch features the brilliant Mercenaries mode — it’s available right from the start of the game. Here’s how to unlock Helena Harper, the first bonus character, in that mode:
The rank required to unlock characters in all other versions of Resident Evil 6 is a B, but in the Switch version, it’s a D. I believe this is because the bonus costumes are available as extra rewards at higher ranks.
Curious!