9 Full Video Games You Can Unlock Inside Other Games

3. Original 8-Bit Celeste (Inside Celeste)

A powerful and essential game that genuinely helps with any understanding of depression, anxiety and negative headspaces, the wonderful Celeste was first conceptualised during a four-day Game Jam, being coded through Pico software as a more reduced, pixellated design.

Once developer Maddy Thorson and Noel Berry set about putting the expanded version together though, they kept a fully playable emulation of the Pico original tucked away inside the Celestial Resort map.

You will have to know exactly where to jump to trigger the corridor leading to the terminal itself, but once inside, the original Celeste is just as charming and delightful as its younger sibling.