Accomplish the indicated achievement to get the corresponding number of 
Gamerscore points:

Party Crasher (10 points): Completed the final level of Act 1 (Italy). 
Welcome to the Jungle (20 points): Completed the final level of Act 2 (Belize).
Good Comrade (30 points): Completed the final level of Act 3 (Russia). 
Well "Trained" (40 points): Completed the final level of Act 4 (China). 
Beyond Awesome, it's Be-Awesome (100 points): Completed the final level of Act
5 and the Game (Oceania). 
So you think you can hack (15 points): Completed 5 Bonus Hack Levels. 
Tame the Mainframe (25 points): Completed 10 Bonus Hack Levels. 
Security? What Security? (50 points): Completed 15 Bonus Hack Levels. 
Time to increase recruiting (50 points): 250 of Calico's henchmen have been defeated.
Biological Enhancement Complete (30 points): Bolt's health bar maxed out. 
Atomic Core Critical (30 points): Bolt's power bar maxed out. 
Battery Upgrade Complete (30 points): Penny's gadget bar maxed out. 
No hack too hidden (35 points): All bonus hack levels have been found. 
Give em the ol' one-two, or six (5 points): Attain a 6 hit combo. 
Mad Combo Skills (15 points): Attain a 15 hit combo. 
Combo Master (50 points): Attain a 30 hit combo. 
Sneaky Sneaky (50 points): Penny completed Raisin' A Ruckus or Hide And Sneak 
without alerting any enemies without using cheats. 
Hacktacular! (75 points): Beat a mini-game level without taking damage. 
Power Overwhelming (5 points): Bolt successfully defeated 3 different enemies 
with Super Sonic Bark, Laser Eyes, and Ground Pound. 
Walking is Boring (5 points): Penny successfully performed a wheel bar up, 
sidle, and cable.