Gigapocalypse (EP)
54 Achievements
32-39h
PS4
Loyal Companion
Reach maximum level of any pet
51.0%
How to unlock the Loyal Companion achievement in Gigapocalypse - Definitive Guide
The maximum level a pet can reach is 5, and you must level it to 5, not obtain it at 5. But you don't have to level it all the way from level 1. If you can obtain a level 4 pet (like from the pumpkin boss), just 1 level will earn you the achievement.