Green Arrow, Crimson Avenger, and Ice can be seen from above shooting at the enemy, but Ice's beams are yellow, not her usual blue.
Huntress and Aquaman do not arrive on the Javelin, but can be seen exiting it with Elongated Man, who was there, as Crimson Avenger attack.
When Green Arrow and Crimson Avenger are attacking the aliens by the Javelin, Green Arrow's quiver is yellow instead of green.
Superman bears Batman in midair after the ejection. Batman is next on the battlefield behind Wonder Woman fighting alongside the others. But then Superman is back to flying him to Wonder Woman's location as he was a moment before.
Fire can be seen shooting some kind of shadowed weapon in the background behind Atom during his discussing the creatures' replication. But a moment later she's holding nothing, emitting flame from her own hands.
When the Atom is inside the machine, he is attacked by tentacles. His skin is then accidentally colored red for a few frames.
After The Atom asks about what will stop a machine from attacking Earth again, Superman replies "We are." but he says it with Kevin Conroy's (Batman's) voice, not George Newbern.
The Atom said the dark heart must be completely destroyed and that even if an ounce is left, it will keep going and then said the only way to stop it is to therefore reprogram it, yet once into the dark heart he completely skips reprogramming it and tries to smash it to pieces.