Question: how to unlock all the characters in marvel ultimate alliance 3?
Answer: Unlocking Elektra in Marvel Ultimate Alliance 3. To unlock Elektra, players must complete the "Bad Business" challenge in the Gamma section of the Infinity Trial mode. ... 
Unlocking Magneto in Marvel Ultimate Alliance 3. ... 
Unlocking Loki in Marvel Ultimate Alliance 3. ... 
Unlocking Thanos in Marvel Ultimate Alliance 3.