Watched this video today and it's a pretty cute recreation of Celeste's basic mechanics and most of 1A being ported to a 3D envinroment. It's really hard to recreate a 2D game in a whole new dimension, so don't have massive expectations, but I think it's a worthy watch and it's interesting to see how the person worked around stuff in 3D design. You can also download the build to check it out in-game. https://www.youtube.com/watch?v=RuueUYnwtKo
