SMB3 2 World 1

So I decided to redo SMB3. I recorded this video using Nestopia and made a save state after each level, which is why after each level there are several frames missing where I made the savestates. Also, I'm using my laptop keyboard which is rather uncomfortable, and so my usual mad SMB3 skillz are heavily held back. I've actually remade levels all the way up until the end of the second world so far (This video ends after the first world), but I'll get around to recording them some other time.
On the map screen there is a path to go straight from "START" to Level 6 or the Castle. This is because it was MUCH easier to test the later levels without having to play through the world from the very start every time I made a change.
I can't upload the ROM file for anyone, but if you ask nice I might upload the IPS file at some point so you can play it yourself. :)