Awesome, thank you so much for the feedback!
I only play tested it on last day, so had time only to slightly improve movement, it felt like on ice all the time :)
Time travel took me like half jam time to implement, but I was also ambitious and implemented mechanic for time-synchronised events that also rewind with time, like disappearing things and moving platforms.
It was buggy and I didn't have time to finish it, so it's left just in code, but at least items can fly around and rewind beautifully :D