Full list of all 75 LEGO Marvel Super Heroes 2 achievements. It takes around 50-60 hours to unlock all of the achievements in the base game on Windows.
The base game contains 45 achievements, and there are 6 DLC packs containing 30 achievements.
Complete all races in Chronopolis
Smash 100 vehicles
Defeat 30 enemies using The Black Knight (Nathan Garrett)
Destroy 100 enemies as Hulk (Thor: Ragnarok)
Activate dance mode and make 5 characters dance
Witness the 100% LEGO Stud Fountain
Purchase all characters
Collect all Gold Bricks
Take a selfie with Eson the Searcher in ''No Eson of Mine''
Play as Fin Fang Foom in ''Defying Conventions''
Unlock and view all Minikit comics
Rescue all Peril Characters
Obtain 'True Believer' in every level
Complete 10 challenges in Chronopolis
Complete all quests in Chronopolis
Have Cosmo and Lockjaw in a party
Have multiple Kangs in a party
Have Morbius, Cap-Wolf, Triton and The Living Mummy in a party
Have various Captain America characters join forces in a single party
Explore Ancient Egypt as Kang
Play ''Capture the Infinity Stone'' in 'Grandmaster Mode'
Collect Gwenpool
Complete ''Out of Time''
Complete the story
Complete ''On Board The Sword''
Complete ''The Road to Knowhere''
Complete ''Symbiote Surprise''
Complete ''K'un-Lun Konundrum''
Complete ''I Sphinx We Have A Problem''
Complete ''Torg-nado''
Complete ''Red King Revelation''
Complete ''Noir Night-Mayor''
Create a custom superhero
Complete ''Inhuman Nature''
Complete ''Hala, is it Kree You're Looking For?''
Complete ''Kree-search and Development''
Complete ''Rune to Manoeuvre''
Complete ''Surtur-n Doom''
Complete ''High-Noon Saloon''
Complete ''Hydra Hijinks''
Have Groot and Groot (Small) in a party
Complete ''What's Klaw's is Mined''
Complete ''Castle Hassle''
Complete ''Avenger's World Tour''
Complete ''No Eson of Mine''
Set both Free Play characters as Proxima Midnight and Corvus Glaive during 'Running the Gauntlet'
Complete the 'Running the Gauntlet' level with all Minikits unlocked
Complete ''Running the Gauntlet''
Complete the 'Running the Gauntlet' level after achieving True Believer status
Defeat 10 enemies in the 'Running the Gauntlet' level with Thanos
Defeat both enemies in the 'The Great Escape' level with Molly Hayes
Destroy both sets of sunglasses positioned on the Magic Trap Masks.
Complete the 'The Great Escape' level with all Minikits unlocked
Complete ''The Great Escape''
Complete the 'The Great Escape' level after achieving True Believer status
Defeat 10 enemies with a heat beam in the 'Egghead Eggs-capade' level
Set both Free Play characters as Wasp Classic and Yellowjacket in the 'Egghead Eggs-capade' level
Complete the 'Egghead Eggs-capade' level with all Minikits unlocked
Complete ''Egghead Eggs-capade''
Complete the 'Egghead Eggs-capade' level after achieving True Believer status
Defeat 20 enemies in the 'Double Trouble' level as Dagger
Set both Free Play characters as Mister Negative in the 'Double Trouble' level
Complete the 'Double Trouble' level with all Minikits unlocked
Complete ''Double Trouble''
Complete the 'Double Trouble' level after achieving True Believer status
Play as Groot until Mr Blue Sky stops playing
Complete the 'Awesome Mix Vol. 2' level with all Minikits unlocked
Damage the Abilisk using the Anulax batteries
Complete 'Awesome Mix Vol. 2'
Complete the 'Awesome Mix Vol. 2' level after achieving True Believer status
Get killed by the Rhino Mech
Set both Free Play characters as M.O.D.O.K. and M.O.D.A.M. in the 'Welcome to the Jungle' level
Complete the 'Welcome to the Jungle' level with all Minikits unlocked
Complete the 'Welcome to the Jungle' level after achieving True Believer status
Complete ''Welcome to the Jungle''