Robert Downey Jr. takes his role as Iron Man very seriously, and the actor brought his famous Marvel character to the real world recently when he met with a young boy for a great cause. Robert, who has portrayed Tony Stark in multiple Avengers films, surprised 7-year-old Alex Pring, who was born missing most of his right arm. Alex is in the process of getting a bionic arm made for him by Limbitless Solutions [3], and the engineering company — along with Microsoft OneNote Collective Project — set out to present Alex with a specially made replica of Iron Man's famous arm, straight from bionics expert Tony Stark himself. Watch the adorable video above now.