In the end credits sequence where Batman and Robin run into numerous characters during their Batclimb, a T-Rex makes a cameo that teased the next LEGO video game.
The first mid-credits scene featured Geoff and Kevin cleaning the Hall of Justice unaware that Hawkman's still trapped in a cage. The song also played in the Batman 75th Anniversary DLC level.
Played in the level completion progress, and in the conclusion of the game where each Justice League member restored the places that were put in a bottle.