Cripes. I didn’t expect that.
I was merrily playing Multi Mission, and then I realised I had a score of about 3,000,000. Then I realised I had just collected the 12th and final artifact. Then, I was in the Artifact Temple place, and was defeating Meta Ridley, and then I was in the Impact Crater “fighting” Metroid Prime.
Just like in, erm, Metroid Prime. And it was ACE.
Then I killed it, and thus I winnared. Credits and everything.
Of course, I could continue playing (and I did), and managed to rack up just over 9,000,000 points in total. Somewhat better than my previous Multi Mission score, eh?