Here is the full list of all 45 LEGO Marvel Super Heroes achievements worth 1,000 gamerscore.
Completed game 100% (Single Player)
Transformed into the Hulk 50 times
Performed Hulk's special move on Loki
Teamed up Captain America with Human Torch (Co-op)
Turned Mister Fantastic into a teapot for the first time
Performed a special throwing move as Colossus on Wolverine
Performed all big LEGO figure transformations
Unlocked all animal-themed characters (Single Player)
Collected all traditionally heroic mutants (Single Player)
Turned into Stan Hulk
Rescued Stan Lee from every peril (Single Player)
Unlocked all True Believers (Single Player)
Drove to the Baxter Building as Magneto in the Magneto Mobile
Defeated 100 enemies as the Thing
Collected all traditionally evil mutants (Single Player)
Collected 1,000,000,000 studs (Single Player)
Collected Doc Ock, Sandman, Mysterio, Kraven the Hunter, Electro and Vulture (Single Player)
Unlocked all the Guardians of the Galaxy (Single Player)
Read a comic in Deadpool's room on the Helicarrier
Collected Howard the Duck (Single Player)
Unlocked Black Cat (Single Player)
Collected all Avengers characters in the game (Single Player)
Played as Agent Coulson
Created a character called “Trevor” in the character customizer
Created a custom character
Collected all Iron Man armors (Single Player)
Completed House Party Protocol
Destroyed 100 vehicles in the Manhattan hub
Completed Level 15 - The Good, the Bad and the Hungry
Completed Level 14 - A Doom with a View
Completed Level 13 - Magnetic Personality
Completed Level 12 - Rapturous Rise
Completed Level 11 - Taking Liberties
Completed Level 10 - That Sinking Feeling
Completed Level 9 - Doctor in the House
Completed Level 8 - Juggernauts and Crosses
Completed Level 7 - Bifrosty Reception
Completed Level 6 - Red Head Detention
Completed Level 5 - Rebooted, Resuited
Completed Level 4 - Rock up at the Lock up
Regenerated as Wolverine
Completed Level 3 - Exploratory Laboratory
Completed Level 2 - Times Square Off
Complete first Helicarrier skydive
Completed Level 1 - Sand Central Station