Killer Instinct
464 Achievements
4,935
354-432h
PC
Arbiter's Matchups
You have defeated 6 different characters in online matches as Arbiter!
15
0.1%
How to unlock the Arbiter's Matchups achievement in Killer Instinct - Definitive Guide
You can do this legitimately by searching for any type of online match and winning with Arbiter, boosting it with a friend or 'double-boxing' with two Xbox Ones and a spare account. Simply defeat 6 different characters when playing online to unlock this achievement.