Aha, I recognise those assets! Fun stuff, there seems to be a bug where the game's timescale isn't reset so it stays at half speed after you die, but I'm not sure what triggers it. I managed to save the prince eventually though :)
Idk either. It started doing it once I messed around with my knight's animations but it was 5 in the morning (after staying up all night) and I was like, nah I'll deal with it later lol.