Nickelodeon All-Star Brawl 2 achievements

Clear Arcade with 1 brawler

Clear Arcade with 15 brawlers

Complete an Arcade run without losing a single stock

Compete in 100 local or online battles

Clear Arcade with all (standard) Brawlers

Complete an Arcade run on the highest difficulty

Compete in 50 local or online battles

Complete the Pop the Slime Balloons minigame with all (standard) brawlers

Play at least once with all standard brawlers in a local or online battle

Clear Arcade with 5 brawlers

Defeat a level 9 NPC in a 1v1 battle

Complete a Pop the Slime Balloons minigame level