A quick note on these notes: For better or worse, as will probably be clear upon reading the following, I didn't have a great experience of this game overall. I want to be clear that the following is offered in a spirit of hopeful improvement--making your project the best it can be--rather than trying to tear anyone down. If you have further questions or want a playtester for the future, you can ask here or find me on the Metroidvania Month Discord.
Notes:
The game looks pretty so far! It isn't quite my style but it is pretty coherent, and the music seems to match what's happening so far as well.
The game really needs a check under the hood for dropped inputs and the reasons they're happening. If that's not what is happening, there should be some major changes to convey to the player when they can or can't jump. I experienced dropped jump inputs both with a keyboard setup and with a controller, assuming "space" was the jump key.
Please have players on every platform check the game for softlocks. I found at least two places in the game as it exists where my character simply began to run in place, seemingly forever, and if there's a way to leave that state once I'm in it, I don't know what it is. I have video of this if you want it (you can find me on the Metroidvania Month Discord by looking for kkairos.)
I have a feeling that there's more content here than I actually saw, but hitting two different softlocks plus the dropped inputs has sort of discouraged me from playing further in the game's current state. As it stands I'm not even sure I've seen enough to rate the game fairly or even judge if it's really in the genre for the jam. I will be following the dev who did the upload in case there are further updates, however! Keep us posted!