Continuity mistake: The Apocalypse/Mayhem: When War asks where are his brothers, it cuts to a close up of his face and suddenly a red Hell spike appears behind him.
Trivia: The Apocalypse/Mayhem: During the cut scene where you see Abaddon and before you fight Straga, there is a moment when a Minion Demon tackles an Angel out of the sky next to a billboard on a building. If you look closely at that sign, there are various names on it. These names are people who are part of the Darksiders' development team. Names including John Tran, Howard Tang, Bri Thatcher, Nick Southam, Chris Doerr, Jeremy Robins, Pedro Seminario, and more.
Continuity mistake: The Apocalypse/Mayhem: During the cut scene before Straga, War walks up to Abaddon and you can see a double yellow line on the road beside War. It cuts to a close up of War's face, then to Abaddon, and then to War drawing his sword. And then back to him on the road and now the double yellow line has vanished off the street.
Revealing mistake: The Apocalypse/Mayhem: During the cut scene before your first battle with Straga, various Angels and Demons are fighting. It shows one Minion Demon holding an Angel Soldier, and in the over head shot he's holding the Angel's torso up off the ground. When it cuts to a side angle just before the Demon rips out the Angel's throat, suddenly the Angel is not only on the ground, but almost completely inside the ground with just part of his face and torso sticking out in a bad animation moment.