Unlock Xbox Live Gamerscore points, by completing the following secret achievements.

Achievement	How to unlock
Antihero (20 points )	Black Suit Conclusion earned.
Bad Kitty (15 points )	Black Cat defeated.
Black Cat and Spider-Man (20 points )	Black Cat Conclusion achieved.
Declawed (15 points )	Wolverine defeated.
Defeat Symbiote Black Cat (20 points )	Symbiote Black Cat defeated.
Defeat Symbiote Electro (20 points )	Symbiote Electro defeated.
Defeat Symbiote Vulture (20 points )	Symbiote Vulture defeated.
Defeat Symbiote Wolverine (20 points )	Symbiote Wolverine defeated.
Defeat Venom, Round One (15 points )	Defeated Venom once.
Defeat Venom, Round Two (20 points )	Defeated Venom twice.
Grounded (15 points )	Electro defeated.
Hero (20 points )	Red Suit Conclusion earned.
Id (5 points )	Spent time with Black Cat.
Mary Jane and Spider-Man (20 points )	Mary Jane Conclusion achieved.
Super-ego (5 points )	Black Cat Spurned.
Vice (5 points )	First Black Suit Choice.
Virtue (5 points )	First Red Suit Choice.
Winged (15 points )	Vulture defeated.