Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
Altar in blood	Kill Torinese in the Duomo	25
Come get some	Complete the game in hard mode	50
Damn I'm good	Complete the game in hardcore mode	100
DDragon	Play with a friend	10
Dirty Harry	X4 combo with revolver	20
Don't stop	X9 combo with continuous ricochet	20
Don't touch me, lady!	Complete level 1 without dying	20
Dr. Gruber's foot care	Destroy 400 windows in Pirellone	25
Flying africana	Kill Africana on the Pirellone	25
For whom the bell tolls	Complete level 7 without dying	30
Hotline Milan	Complete level 6 without dying	30
Killer	Kill 1000 enemies with any weapon	50
King of Navigli	Score 100.000 or more in Arena mode	75
Maximus Decimus Meridius	Score 10.000 or more in Arena mode	25
One for the road	Kill 25 enemies using the single ricochet	10
Paci populorum sospitae	Kill Scarred Ciro at Porta Ticinese	25
Piece of cake	Complete the game in normal mode	25
Piero come home	Complete level 4 without dying	20
Please stop	Kill 100 enemies with continuous ricochet	25
Prince of Bovisa	Score 50.000 or more in Arena mode	50
Samurai	Kill 100 enemies with knife	25
Save a prayer	Complete level 5 without dying	25
Sentenza	Kill six enemies in rapid succession using a revolver	25
Spritz for all	Complete level 3 without dying	20
SSnake	Kill 25 enemies with a stealth attack	25
Streetcar on time	Complete level 2 without dying	20
Two birds with one stone	Score a total of 50 X2 multipliers using a split ricochet hit	25
Unabomber	X3 combo with molotov/grenade	20
X220	X2 combo with any weapon	10
Years of lead	Kill Shining Giacomo in San Vittore penitentiary	25