Multiple Personalities Trophy
Finish a game with each avatarThere are 10 avatars in the game and you simply need to finish a match with each one. These 10 avatars are also the 10 opponents for each game type so the best way to remember who you have played with is to play against Florence with Florence, for example. This will ensure you don’t miss anyone. Alternatively, go through each avatar one at a time making sure that you don’t miss any. The trophy will unlock when you have finished a match with the last avatar that you need.
This trophy was also reportedly glitched, however upon testing on multiple accounts it unlocked as expected every time. I can only assume that avatars were missed by those who thought it to be glitched.