At the end of the sewer level (Chasing Doctor Connors), use Web Slam on one of the Lizard-men in the pit at the door leading out. It will go through the crack of the door and the icon will be under the floor, where you cannot go. The only way to exit is to retry the level.
Defeating Venom
You must make noise to defeat Venom. Hit him once and Sandman will raise his fists off the ground in an attempt to crush you. Dodge this by simply running through either of his fists. Harry will throw a grenade. When it explodes, it will stun Venom for a few seconds and make him vulnerable to all your attacks. Note: You must be nearby when the grenade explodes; it does not seem work when you are not there. Also, there are health packs on the two sides of the building that respawn once you use them. If you are lucky, two may appear in the same location, doubling the health you can get.
Fight against New Goblin
When the mission starts Harry will appear above you and throw a Pumpkin Bomb. Dodge it if you possible. If not, wait until he hovers to one of the end of the screen then use the time to collect health power-ups if you were hit. If you were not hit, swing towards him. Slide the stylus towards him. This will hit him in the air. After you hit him, swing across him and stop. He will throw the Pumpkin Bomb again. Repeat this process until his health reaches zero.
Finding all meteor shards
Successfully complete the game and buy all the unlocked upgrades from the store. Exit to the main menu, go to "Options", and go to "Cheats". Turn "Black Suit" on. You will have the black suit on until the game is turned off, making it much easier to find meteor shards.
Unlock a DeWolfe biography
Successfully complete the game 100% (with all Ultimate challenges, Shards, Bugles, Spiders, and other bonuses done) to unlock a DeWolfe biography.
Unlock All enemies are robots
Complete the story mode and purchase from the store for 5,000 Hero Points.
Unlock Alternate touchscreen background
Complete the story mode and purchase from the store for 5,000 Hero Points.
Unlock Always wear the black suit
Complete the story mode and purchase from the store for 5,000 Hero Points.
Unlock Invincibility
Complete the story mode and purchase from the store for 5,000 Hero Points.
Unlock Night-time mode
Complete the story mode and purchase from the store for 5,000 Hero Points.
