Wow, thank you very much for giving me such a detailed feedback!
I think I should put some cinematic bars at the top of the cutscenes to make it clear that you can't move at that moment.
Your suggestion about adding shake lines to the arrow buttons is a great one.
At the beginning of the game when it says "press any key to start" the keys only work after the animation of the logo has finished, maybe that's what caused the impression that only "enter" key works! I will also look into ensuring that this confusion doesn't happen in the next update!
I'm glad to hear that you liked the detail in the game and the music and graphics. Thank you again for your feedback and support! This is the first game jam that I am participating, so your feedback is very important to me!
I hope you have a great weekend!