LEGO enthusiast Michael of MGF Customs/Reviews undertook a daunting task: to create custom "upgraded" minifigs based on Avengers: Age of Ultron. It was time-consuming task, but as you can see in the lengthy showcase video below, the results are impressive.

Michael overlooked no detail in creating everyone from Captain America and Black Widow to Scarlet Witch and Quicksilver to Ultron and The Vision. However, for the incredible Hulkbuster figure, he turned to Legohaulic.

Watch the in-depth video below, and check out more work by MGF Customs/Reviews on Flickr and Facebook.

(via Nerd Approved)