Thank you so much for trying my game and giving feedback :)
Yes I wanted to add animations for dying and sound effects but I don't know how to add them and I didn't have time to do research ^^' Will add them in a future update :)
Yeah the rewind was more in the story and the fact that going from level 1 to level 2 you go back in time. I realise that it wasn't super clear ^^'
That's awesome and I'm happy that my stream helped you find the glitch ^^