Beat the main story and collect 50 spider emblems to unlock the black suit spidey.
Play as Venom
Collect all of the meteorite pieces to unlock venom as a playable character
Unlimited Hero Points Glitch
Play through the game and take EVERY boss' photo, and whatever gang members you want. Make sure to leave at least one not taken. After beating story mode take any pictures you haven't taken, and you'll get around 15 points. Save your game and reset your PS2. Load your game and you should hear and see the Villain Photo complete and gain another 15 hero points. Send them, save, and restart as much as needed.