Famicom actually, Nintendo of America has censored a lot of it for the NES like the finger gun shot to the head(suicide), the giant drums(religious reference to Japanese thunder gods) and the cigar smoking, overalls wearing cat strutting about(Iran-Contra Affair).
One of the best large-skip glitch routes I've seen in terms of technical execution. Too bad he didn't get luckier on Leathervest or he could have shaved another ~3 seconds off.