Time of Day Selection:
When you complete Story mode you wil be able to select the time of day. To do this you have to go to your apartment and then exit. When you do this a menu will appear and you can make your selection.
Unlock Comic Books:
When you collect the indicated amount of pages which are scattered around Manhattan you will be able to read the corresponding full issue of Spider-Man comic.
1st Black Cat:
Collect 125 Pages
1st Gwen Stacy:
Collect 350 Pages
Collect 250 Pages
Collect 15 Pages
Collect 50 Pages
Collect 80 Pages
Collect 500 Pages
Collect 5 Pages
Collect 30 Pages
Collect 175 Pages
Unlock Black Costume:
Complete the game with a 100% completion.
Unlock Classic Costume:
Download and start the 'Rhino Challenge' DLC.
Unlock Cross Species Costume:
Complete the game on any difficulty setting.
Unlock Scarlet Spider (2012) Costume:
Find the fountain which is located near the middle of Central Park. Then, go north until you reach the middle bridge, which is directly at the center of Central Park. If you look on the right side of the bridge you will see a Spider-Man emblem.
When you take a picture of the emblem the Scarlet Spider (2012) costume will become unlocked.
Unlock Big Time Suit:
Search Times Square behind the red bleachers, on the glass.
Unlock Original Suit (No Belt)
When the game begins, you will have this suit. Go to Peter's apartment and check for alternate costumes. The original suit will be waiting in the closet.
Unlock Sam Raimi Trilogy - Classic Suit
When you register any of the game's DLC (including any pre-order code you may have received) and you will unlock this suit in Peter's apartment.
Easy XP and Tech Points:
In Chapter 1: Oscorp Is Your Friend when you battle the S-01 you will earn 2,000 XP and 150 Tech Points for each kill. Each kill takes under four minutes and you can keep defeating the S-01 as many times as you want to quickly level up and max out your available skills.