Oh, its working now.
They played again all the 15 levels and after that we see the “worlds”

Hi, I am another “tired” father of two. They played on XBOX 360. They finished all the two endings you mentioned, but we are stuck. After finishing Avengers2 the screen went blank and even the controllers couldnt do anything. So my main problem we cannot see those 3 more movie levels and the open world levels. Our progress is 28%.
When restart the game (by hard resetting the console) we dont see any options about this. We can only load the finished game or start it over from the beginning.

They completed the ultron missions and have the achievement, sure there plenty to unlock and collect but they are kids not adults. There’s at most 2 more days for them then they won’t touch it again because the story is over. It is a great game and they are still enjoying it but making it s little more challenging and adding more to the story line would have help longevity. They must have nearly all the Lego games so far Star Wars Harry Potter batman and so on which does help them with new games. The problem for me is they all end the same way completed a few days collecting things and put away until they have a friend come round that wants to play one.

At six hours you’re kids are most likely only watching the first ending. The game has two separate endings as though it was originally meant to be two separate games. One ending after completing the levels for the movie Avengers 1, and another after completing the levels for the movie Avengers 2: Age of Ultron.

There are also three more movie levels that having nothing to do with either ending (Captain America: Winter Soldier, Iron Man 3, Thor 2: The Dark World) and several open world levels with multiple side missions each, including a large Manhattan hub with dozens upon dozens and missions and such to do just in that open world alone. There is no way your kids have even made a dent in this game in six hours, it’s fairly massive.