Within the first 30 second of playing I found 2 different softblocks and had to refresh the page, something I would recommend is adding a restart button to fix this, second I would recommend adding a menu to make the game feel better (this one is more understandable because I didn't have time to add one either) finally I the theme use is good being a platformer, I interpreted it in the same way, but the controls feel to lose, I personally found the middle to be to high and would mainly go for a bit next to it, so to add more measurement/visual I would recommend making the inside like a bar with blue on the outside, green in the middle and red on the inside (and also add the in-between colors so it looks good). It visually feels a little bit plain so I would recommend adding a background and mid background along with some particles, also the music feels a little bit to repetitive, I would recommend making the song longer and adding more structure to the music, the current song feels more like a base rather then the song itself, its like like if megalovania was just the intro again and again, it would drive someone mad, but after that intro repeated 1 or 2 times it goes into the meat of the song and eventually brings that intro back later on.