To unlock speed, you’ll have to do a couple of missions for Lou Ferrigno first. You’ll find the first in the Financial District and the second in Central Park. Once those are done, Lou Ferrigno will appear once again, this time around Times Square. He’ll need you to pick up some of his shirts for him.
What is the cheat code for speed in Lego Marvel Avengers?
How do you unlock Silver Surfer on Lego Marvel superheroes?
Silver Surfer can be found one last time by the car garage in East Harlem, and he’s missing a piece of his board. Follow the red studs to find the thief who stole the piece; beat it off of him and return it to unlocked the Surfer.