Bloons TD 6
151 Achievements
75,500 XP
Google Play
Monkey Avenger League
Win 4 games with 4 different Heroes
500 XP
25.57%
How to unlock the Monkey Avenger League achievement in Bloons TD 6 - Definitive Guide
From the main menu you can change your hero under the 'heroes' tab. Simply complete any game with 4 different heroes and the achievement will unlock. Winning the game is necessary for it to be counted.