jerrrry said:
The one thing I don't understand though is how he got up to where the vine takes you via that pipe in 4-2. Can anyone explain what happened there?
Sorry to quote you again, but I just dusted off my old gameboy colour and gave it a whizz through, I have the Super Mario Bros. Deluxe edition, but I'm guessing it's the same as his version.
He does indeed appear to cheat at 2:32 in the video. The Warp zone is located in the three blocks seen at 2:21, he however passes these, and goes down a pipe that leads to an ordinary coin zone, but in his game, it leads to the warp zone.
Also of note was a disappearing plant at exactly 7:00, it doesn't go back down into to pipe, it just disappears, and I may be wrong, but I think the pipe he travels down in the flying fish bit is the wrong pipe (7:26) I think he actually should go across the lava pit and into the next pipe.
I dunno, unless he has some strange version he must have done some mods.