Playing through steadily, and have just reached Brinstar.
Problems so far:
You appear to be able to get permastuck here:
I only have Morph Ball, Missiles, and Bombs.
You take damage on the lift down to Brinstar (approximately 30 health), meaning that any player not being careful to refill could die as soon as the lift stops.
You take damage on the lift down to Brinstar (approximately 30 health), meaning that any player not being careful to refill could die as soon as the lift stops.
I went back and restarted the game so I could check this as I didn't notice it the first time. This is happening when Samus crosses path with enemies going down the elevator. I have screen shots of it happening but it should be easy enough for you to figure out what ones are causing the problem.
I just tested something. Did you use a headered rom? I just loaded it up with a headered to see, and Ceres was broken. Just a blue screen and Samus. The patch is for unheadered.