ok ok wait wait wait this is actually well done!
i would 100% love to see this completed!!
however, may i suggest improving a few things?
the thing that bugs me the most is the UI speed. if you set the text speed to instant, it would work a lot better.
other than that its just things like missile drops not spawning yet and samus' physics are a bit wonky. i get gb studio's built deceleration isnt super fantastic, but theres a plugin that allows for more control called "platformer+".
also, at the save stations samus' sprite can become unaligned/jank since im assuming you're using a different actor for the front facing view, which is totally fine. however, you should set samus' actual player position to the middle and re-center the camera to samus then hide her and do the save animation. that way it both makes her spawn in the middle on reload and fixes the funky animation bug.
can't wait to see more from this!