This is a really nice game! I'm amazed that you were able to make a whole rhythm game in just a week. The art and music are all very fitting for the vibe you were going for, and I had a lot of fun trying to stay alive in the game!
I agree with some of the other comments written on this post (I think having more feedback would be more satisfying) so I won't go too deep into that. I think another minor thing you could very easily add is having a unique animation for when multiple directions need to be inputted at the same time. I feel like it would just make hitting multidirectional inputs a lot more satisfying, and it would make it clearer to the player that the input they did was the correct one.
Also I might be missing something, but is there a way to restart the game? If not, I think that is definitely needed!
Overall though, I think this is really great! Awesome work!