Arrow keys to move. Avoid spikes.
WARNING: Some parts of this game is not in the real game (like the acidic water in level 14) Pikuniku is a puzzle adventure video game developed by French-British indie collective Sectordub and published by Devolver Digital, that was released on January 24, 2019 for Linux, macOS, Nintendo Switch and Microsoft Windows. It was later released on March 12, 2020 for Xbox One and on February 9, 2021 for Stadia. More in https://en.wikipedia.org/wiki/Pikuniku. I played it, believe me.