Here is the full list of unlockable outfits, skills, weapons, and characters for Resident Evil: The Mercenaries 3D for the Nintendo 3DS.
Unlock Ex Missions
To unlock the Ex missions, you just need to beat the game with at least B ranks on all levels. Once the credits roll, you should see that you have access to the Ex missions.
Unlockable Characters
Here is the full list of unlockable characters, and what needs to be done to unlock them.
Barry – Complete mission 4-5 with a B rank or higher
Claire – Complete mission 1-3 with a B rank or higher
Krauser – Complete mission 3-5 with a B rank or higher
Rebecca – Complete mission 2-3 with a B rank or higher
Wesker – Complete mission 5-5 with a B rank or higher
Unlockable Outfits
Here is a list of all unlockable outfits, and what must be done to unlock them.
Barry’s American Outfit – Get 20 total medals
Chris’ Pilot Outfit – Get an SS rank in Mission 1-3, or get 10 total medals
Claire’s Suit Outfit – Get 25 total medals
Hunk’s Reaper Outfit – Get an A rank in all missions, except Level Ex
Jill’s Resident Evil 3 Outfit – Get an S rank in Mission 3-5
Krauser’s Exoskeleton Outfit– Get an S rank in Mission 5-5
Rebacca’s Nurse Outfit – Get an S rank in all missions, except Level Ex
Wesker’s Uroboros Outfit – Get a B rank or higher in all missions
Unlock Signature Weapons
To unlock a character’s signature weapons, you need to get an SS rank in all missions in the game leading up to and including mission 5-5 with that character. Once you do this, that character’s signature weapons will be available for all other characters to use.
Unlockable Skills
Here is a list of the skills you can unlock, and what you must do in order to unlock them.
Handgun Technique – Complete mission 4-1 with a B rank or higher
Medic – Complete mission 1-3 with a B rank or higher
Revenge – Complete mission 4-2 with a B rank or higher