Super Mario Bros. 3
While reminiscing with my sister about our childhood, I reminded her that I could
beat Super Mario Bros. 3 in one life. Long story short, Sarah said it never happened.
So I flew home, set up my NES, bought game recording software on Amazon, waited two days to hook all that stuff up, and then recorded my one life Koopa takedown. This is for you Sarah, and anyone else still looking for warp secrets.
(Palm sweats start at 42 min and 33 seconds.)