Mewtwo VS Shadow the Hedgehog - S3-E6
Revealing mistake: During Shadow's Super Shadow transformation, half of the background becomes a green screen.
Nightwing VS Daredevil (DC VS Marvel) - S5-E12
Nightwing: Hah, see you in Hell. (00:17:40)
Nightwing VS Daredevil (DC VS Marvel) - S5-E12
Trivia: This is the first ever Death Battle episode done in live action.