Wuppo

Wuppo is a 2016 video game released on PC, Xbox, PlayStation, and Nintendo Switch. It was developed by Knuist & Perzik and released on September 29, 2016 for the PC. On September 5th 2019, Wuppo: Definitive Edition was released which brought Co-Op, along with a list of changes and updates to pre-existing features.

Demo Version
On steam there is a demo version of Wuppo, which you can play until you beat Blendjibick. This version of the game contains Bufter and the 101st Happiness