Interesting discovery: at 2:38:00 of
this stream, Ness falls off Skyloft's platform, lands on the flat ground of the "Isle of the Goddess" transformation, and
takes 12% impact damage because the ground wasn't fully scrolled onto the screen and was thus incorrectly regarded as "moving terrain". Smash developers, why do you do this to us.
(Let's keep some perspective, though: that Ness probably should have died there from the way he was moving - but you can't treat Skyloft's terrain like Delfino's, where you can leap onto the ground as soon as you think it's cleared the lower blast line.)
EDIT: Also at 4:23:20 - how the heck did that ROB end up with endless up-b flames shooting out of its rear?