I am a huge fan of 2D platformers, so hopefully this isn't too biased. I loved the gameplay, it was quite challenging and the mechanic really shone throughout the whole game. It was used in quite a few unique ways. The visuals are lacking, but with a bit more polishing I think it would look quite nice. A big issue was the audio, because there wasn't really any, so a song (I noticed below that you stated you are making your own song, which is cool) and some collision/power up effects would be great! Also, the UI was kinda cluttered due to all the text and buttons in the menu.
Viewing post in A Platformer Trial of Colors jam comments
Thanks! :D I added music right now, just so you know. Lol, I am not good at art so updating the visuals might not be very soon. And thanks, because I originally made these songs for any videos I make but now I realized I can use them for my games. I will also try to add sound effects soon. I also added a level editor if you are interested. As for the UI, it's not very clean, lol, but I did try to put them in good areas. Although on some levels they are covered (like Level 14, you can't see the level or speedrun time because they are covered by white tiles). But thanks again!