The idea of a Visual novel x Undertale style bullet hell is really creative. I liked the concept and it could definitely be made into something really cool!
For the gameplay part - I do have some minor complaints, the player's hitbox felt inconsistent and I got hit when I thought I shouldn't get hit. If I remember correctly, Godot lets you do circular hitboxes right? So perhaps this issue could be fixed with some tweaking and testing for player and bullet hitboxes. Also, it took me a while to realize that you're not supposed to dodge red hearts, which I mean, makes sense right, the main character is actually really enjoying interacting with Simon, but yeah it would be neat if the narrator voice said something that hints at hearts being a bonus.
Though, I understand that the visual novel part of the game is the most important one you'll likely focus on, so it's okay if the dodging part is not perfect. I'm curious to see how Escape The Date will grow in the future!