If you like Celeste, check out Studio Pixel [0]. His most recent game Kero Blaster (mobile) is excellent but Cave Story is the classic. Tight controls, retro aesthetic, imaginative levels, very well executed.

[0] https://studiopixel.jp

Oh, I didn't realize. Thanks for telling me.

I have played the original Celeste for PICO-8 (now called Celeste Classic). I plan on playing the full release eventually. The screenshot actually reminded me a little of an earlier game by Maddy Thorson, An Untitled Story. I think it is the way the mountains are drawn in the background and the thick outlines.

A link to play Celeste Classic: https://www.lexaloffle.com/bbs/?tid=2145.

TIG Wiki page for An Untitled Story: https://tig.fandom.com/wiki/An_Untitled_Story.

Funnily enough, Celeste uses big, anti-aliased text, which beautifully contrasts with the pixelart.