Here is my Goomba% run submission. (PB = 30:24)

I really only have one specific point I'd like to add input to based off the existing conversation within this thread regarding the category and the deemed "gray areas". I seem to be the oddball out with this opinion, which is fine, but I figured I would voice it anyhow.

Personally, I feel that once a Goomba has been eliminated it should count towards your total and you shouldn’t have to "re-dead" them. Especially in places such as THI, it’s punishment enough having to traverse back to where you left off. I understand the argument that All Coins requires you to get the coins again because the stage doesn’t record coin count unless you complete it. The game (to my knowledge) does not record enemy deaths within a stage. Therefore, I don't think that should hold any significant weight in determining whether or not Goombas are counted if Mario dies in stage prior to getting all of them.