I don't know if it is for N64 inspiration, but for those who have never played Celeste before, they don't know the controllers. I somehow managed to pass the first wall, but honestly I have no idea how I did it. It needs a simple explanation for controllers, or a tutorial.
Also, it would be good to add Control customization (But anyway, thanks for changing jump for X and Y for speed boost in the Pro Controller). The Pause menu options don't respond persistently or they don't work at all with the Controller.
I can't save the game with the Pro Controller, but it is posible with "C" key on "Save & Quit".
But, despite that, I think it is a beautiful game with great mechanics and nostalgic style. I love the music, but this playfully music in the Cassette areas can become annoying after dying too many times (but I like it, I guess it is obnoxious in the hardest or non-rithmic levels), but I think that is more like a personal opinion.
I will add for developers, I download the version "Celeste64-1.1.1-win-x64" But overall, the design is cute and it is a joyfull experience