VIDEOS:
Giant Ultron
Ultron pilots a massive version of himself to attack Asgard. Because his body is made of vibranium, it's completely immune to blasts from the Hulkbuster, so the heroes have to go inside Giant Ultron to stop him.
Example of:
Attack of the 50-Foot Whatever
"Any sign of Loki?"
Example of:
Face-Revealing Turn
Time
Example of:
Pungeon Master
Disney Infinity 2.0
Example of:
Stock Clock Hand Hang