We've Seen Wights Fling Themselves Off Of Walls Before

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The Battle of Winterfell became extra intense when the Army of the Dead breached the walls and started flinging themselves into the courtyard of the castle. The move is a nod to Jon Snow's face-off against the Night King at Hardhome.

At Hardhome, the Night King made thousands of wights fling themselves off a cliff, crack their heads up, and continue running. The move was when Jon decided to retreat from fighting. The wights tried to do it again at Winterfell but for those inside the castle, there was nowhere to retreat.

Next, see how Theon foreshadowed his own death.