Made good progress today!
So yesterday I managed to make a parallax background, which was very easy to do. I also made a few magic floating orbs as enemies that shot lasers at the player.Today, I've added the ability to switch between the three platforms and added horizontal movement so the player can avoid the lasers. However, I originally did not intend for the game to have any horizontal player movement.
Also, another cool thing I decided to add was particles! Whenever the player moves between platforms or the orbs shoot a laser, there are cool particles thanks to Godot's particle system.
I would say that I've made some good progress in these last two days.