Really beautiful platformer with a simple yet really interesting mechanic, shifting between two worlds / maps to make progress. I absolutely love the pixel art on this, it's gorgeous and feels super polished (you could even add a few particle effects). The NES-type music is super fitting and well executed, my favorite being the one in the main menu (curious which program you used to make those?). The platforming part was also great, it took me a bit of time to properly navigate and feel like I was making good progress, and I did have one really bad "fall" where I ended up losing a ton of progress, maybe checkpoints could make the experience a bit less punishing. A really great game, I'll look into the other stuff you have built.
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Thank you. I developed this game in Godot 3.5. I really made something quite simple since I knew I wouldn't have enough time to finish it as I'm also working on my first commercial project and since I do everything alone, I always need to manage my time well. I'm Brazilian, and here in Brazil, things are quite difficult, especially for independent developers.