I must say you certainly succeeded in making a rage platformer. I admit I'm not a big fan of platformer just generally, rage platformers get even further out of my wheelhouse. I did at least make it through the main menu and the tutorial, but as soon as I saw the first real level I just had to laugh. I only ever got about halfway through the first screen before giving up, sadly I have little patience in these type of games.
I did like several aspects of the game though, the main menu being playable is a great touch in platformers. Being able to grab ledges with the arms is nice, certainly saved me a few times. The music is pretty fitting, but yes I did run into the music issues you mentioned in discord and your devlog. I think Not Jam's suggestion would be best. I didn't get that far into the game at all, but if there's nothing in a level that needs to be reset other than the players position then you should try to only reset the player character.
Also I wasn't expecting an in-game credit, so thanks for that. Though admittedly I think it would've been hilarious if mine was the only one done using the default text so it still looked blurry lol.
(Also the text in certain parts of the game still appear to be using the old text that looks pixelated)
Overall, a decent rage platformer, nice work!