Really neat game! Insanely good level design, it felt really rewarding to properly use the double jump and dash mechanic. Only issue I had was when I first tried to get past the first few thorns for quite a few minutes. Only after I checked the comments, I saw that I should have played in full screen. Had a lot of fun when I finally played in full screen!
For your first jam and as a solo project, I think this is extremely impressive. You made the art all by yourself too? Congrats on rocking your first jam!