Here is the full list of all 46 The Amazing Spider-Man 2 achievements worth 1,000 gamerscore.
Disarmed 50 enemies
Destroyed 20 body armors
Defeated Electro
Defeated 300 enemies
Defeated Kingpin
Acquired the ionic web
Defeated Kraven
Completed 10 rescue situations
Defeated Black Cat
Defeated Cletus Kasady
Completed 10 petty crime situations
Defeated 50 enemies by performing stealth takedowns
Achieved 100 critical hits
Performed 15 signature moves
Completed a hideout without being spotted
Defeated 100 enemies
Heroism to the maximum
Acquired the Seismic Blast ability
Defeated Shocker
Achieved a combo streak of 42
Complete the game on Human difficulty
Complete the game on Hero difficulty
Complete the game on Super Hero difficulty
Collect all Spider-Man comic books
Retrieve all parts of Black Cat's journal
Retrieve all parts of Menken's journal
Retrieve all parts of Detective's journal
Unlock all character bios
Complete all photo challenges
Photograph all Cletus Kasady symbols
Defeat Green Goblin
Defeat Carnage
Unlock all suits
Complete all hideouts
Complete all combat challenges
Achieve 30 multidodges
Defeat 500 enemies
Save 50 civilians
Reach maximum levels for all suits
Unlock all concept art
Complete 10 deadlock situations
Complete 10 building on fire situations
Complete 5 races
Perform 50 signature moves
Damage Carnage with fire at least 3 times before defeating him
Destroy any armored enemy using Web-Strike