Nickelodeon All-Star Brawl 2
28 Achievements
Steam
No Nonsense Avatar
Clear Arcade with 1 brawler
11.2%
How to unlock the No Nonsense Avatar achievement in Nickelodeon All-Star Brawl 2 - Definitive Guide
this will pop when you get to the results screen after beating the final boss with any character in arcade mode on any difficulty
Refer to Leave Everything to Me! (100G) for more information.