As soon as I figured out you had to air jump to make some of the more tricky jumps I was able to get to the end without any major issues.
I really liked the premise, totally down for a rocker metroidvania that would be my jam. The switch to the final area was a cool shift in atmosphere.
There is bits of polish you could do but I think you know that yourself, it's a game jam so time constraints always makes that difficult.
I am hoping Tommy shows up again. If you ever do an update or do something similar would love to play it.