You have a README which is great, but you'll need a License file as well (these are two main criteria for open source category). Make sure you take the time to fill out your README; you can even just add what's on your submission page: https://brianjiang.itch.io/electro-dash and some screenshots.
Vertical format would be perfect for mobile. Really cool and different game. Controls are really easy to get the hang of, very intuitive game. I can definitely see this working perfectly on mobile. Sound effects and music are great.
I like that the game feels super polished, clean, and your work with light is amazing. Nice job! I got 11870 on my first run, so that tells you it's a great game to get the hang of. I also enjoyed the dynamics (light to dark, spark balls for dragging in the power dots etc.) Well done.