World 8 complete. Included save file starts at World 8.
The reason I haven't submitted it is because there's a problem in my Bowser battle. World 8 in general was a huge pain; I'm basically ending up with a sub-par copy of Genisto's run.
I'm wondering if anyone knows how Genisto's Bowser battle has Bowser do five little hops before his big jump, because I'm getting only four no matter what I've tried. This is why Bowser jumps before I have a chance to kill him. I'm only 11 frames slower on the kill, but since Bowser is so high in the air, he takes longer to fall as well, so I'm 52 frames behind in total.
If I can't figure it out, then I'll end up submitting this run, as it does look pretty cool, and it's still reasonably quick.
Edit: Figured it out, I think.
Edit again: Definitely figured it out. I'll be submitting the run shortly.