I'm doing Forest Temple BiT, I load the file from Bo's House, and I can't get the King Bulbin fight to NOT start. Every run I watch it takes them to the title screen again, but I always start the King Bulbin fight.

Are u resetting the console as u skip the cutscene?

I recommend watching this video (4:07).

Like The_Guy_Downstairs mentioned, the key thing is resetting the game before the cutscene gets to play for more than a few seconds, and then immediately skipping the cutscene. If you pay close attention to the WR you'll see that Kejs begins a softreset, then mashes Start to skip the approach cutscene. I suggest hitting the reset button on your console instead of using the softreset combo (X + Start +B) as it makes it a little easier.