Thor: he was trying to pull Mjolnir out of the ground with his pick-up. The Avengers: he was being interviewed at the end and said something along the lines of "superheros in New York? Give me a break." He also appears in the Spider-Man ride at Universal Studios.
This custom 'Pin the Emblem on Batman' party game was a big hit at the party. It was created by tracing the birthday boy onto a large poster board and then decorating. The Batman emblems were made using a Cricut machine and Batman: The Bold and the Brave Cricut cartridge.