Offline test run, pretty good start, rough farm, mostly good Kraid area and climb to Tourian, slightly sketchy Tourian and escape. Got a Sub-20! With NGC port loading times between areas this would be a 18:45.219, from the first frame in Brinstar to Samus first frontal frame on Tourian exit elevator. Played on NEStopia 1.52.0 using FDS BIOS. VirtualDub times this as 19:48.717 (with FDS loading times).