Wow, I am very impressed by how many little things to figure out you crammed in here! Very fun, the controls/combat is challenging, but the consequences of failure aren't too high so it doesn't feel bad. Made me think of Zelda 1, obviously, but also like, GameCube/PS2 3D action platformer games? The ones that suddenly ask you to do a kart race, or a match 3 puzzle, or floss a giant's teeth, or something like that to progress.
I will say, enemies knocking you backwards instead of away from the enemy did lead to a few too many frustrating moments where I was trying to move away from an enemy, but then the enemy knocked me "back" and basically pulled me into it, hitting me twice and putting me on the opposite side of where I wanted to go. That said, it was a pretty fun challenge to figure out how to work around that, so... I guess that's actually a plus? I dunno.
Minor bugs: When I died during the boss fight, the boss' HP meter remained on screen until I beat it, when I picked up the boss medal, there was a second boss medal that I could also pick up (same with the VHS medal), sometimes while playing Breakout the paddle starts following the ball until the ball goes out of bounds or you restart the minigame. I think the ball is somehow spawning below the paddle and pushing it up, and the paddle is trying to move back to where it's supposed to be? Also, not sure if this is a bug or just a secret I don't understand yet, but the boss kept vomiting small green circles that never went away even after the fight? Like the bullets but green. They don't do anything.
Also some easy things to potentially add, either to this game after voting or to a future project: Godot makes it relatively easy to export for web, and I don't think this game is doing any of the various things that makes Godot web stuff not work. In my experience, people are way more likely to play games with web versions, so I try to do that when possible. Also, controller inputs! Godot lets you add input maps that work with pretty much all modern controllers very easily, so like IMO no reason not to add some most of the time. That said, this one might be more of a "me" thing, most game jam games I see don't bother setting up controller inputs.
Sorry if that felt like a lot of criticism, you just had me playing Breakout for so long, I had the time to think of a bunch of stuff to write (it took me over an hour, I am very bad at Breakout). It was overall a very fun and engaging game, your really nailed the feeling of exploration and adventure!
Also it replicates that classic Zelda 1 moment where I'm missing a little bit of health, so I decide to grind some enemies to heal, and that proves to be a fatal mistake because I'm actually pretty bad at the combat.