Pikuniku is a fun little platform adventure from Devolver Digital. The game takes 5h minimum to complete and for the most part, you’ll just want to play the adventure story mode while following this guide to make sure you don’t miss anything. Pay special attention to the collectibles along the way and make sure to not miss any of the missable achievements ("Suprematism", "Dancing machine", "Right under your feet", and "Collector") or you’ll need to start another whole playthrough.
There are 3 achievements related to co-op either you will need 2 controller or match with another player. "You’re not helping", "Gotta go fast" and the extra 4 collectable trophies
I personally played watching the following guide. Hope you all enjoy the completion.