I was playing Kirby Super Star on a ZSNES emulator (for Kirby geeks if such a thing exists, specifically the Revenge of Meta Knight mission) and this RANDOMLY happened. I was just at the top of a ladder and then bam, I randomly entered in a fight with this super hard boss thing that I could barely damage. I could not see the ground, or the hole in the ground that I kept falling through, and my helper was getting owned on every part of the screen.
Does anyone know what the hell that is?? The weird part is, I figured it might be a boss from later on in that mission, but I never saw that boss again; I died fighting him, and then when I tried to go back to the same spot, nothing happened.
...wtf.