What was a detail about a Death Battle that you didn’t notice until after you rewatched the video?

For me, it was in Goku Black vs Reverse Flash. During the scene where they’re going back in time to try and kill each other, Reverse Flash is trying to kill Goku Black during several parts of the battle while Goku Black is trying to kill Reverse Flash before the battle even happens. This is because, as stated, Zamazu isn’t afraid to take shortcuts.