Celeste is slammed with nooks and crannies that hide collectibles and secrets. There is more to the game than just floating strawberries. On this page you can find secrets that Celeste has for you to find.
Celeste is actually based off of a Pico-8 game of the same name. The Pico-8 is a computer program that lets people make Gameboy-like games and share them. This can be found in Chapter 3- Celestial Resort.