Black Suit & Venom
To unlock the black Spider-Man suit, you must collect 50 spider emblems.
When you play with the black suit, you are able to find meteorite fragments. These fragments are small rock-like objects that are surrounded by a purple and pink glow. You may find these fragments by listening for a pulsating sound. The sound will become louder as you get closer to the meteorite fragments. Additionally, you will hear a chime when you become close to a token. To enhance your ability to find meteorite fragments and tokens, go to settings and raise the SFX volume. This will allow you to hear the pulse (meteorite fragments) and the chime (tokens) more clearly.
Once you collect 100 meteorite fragments, you will be able to play as Venom.
Easy Hero Points
Take a picture of all but one (at least one) boss while playing on Story mode, then take the remaining pictures of the boss(es) after completing Story mode; this will get you around 15 Hero Points. After, reset your Wii after saving your game. Load your saved game, and you will see the Villain Photos finished and you will also receive another 15 Hero Points. Spend the points and repeat the process as desired for more points.
Easy Gang Eradication
Before you meet Mary Jane at the restaurant and after you defeat Sandman for the first time in the "Mary Jane's Favorite Band," you are unable to take off the black suit. In this period, you can wear the black suit without sustaining any damage; this period will not end until you start the next mission. You are then able to rid the city of gang activity, which will be much easier with the black suit.