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