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

  Use the Force, Edgar (5 points): Successfully complete the Sunny Day Farm 
  level in Single Player Normal mode. 
  Dumb Flying Stingray (10 points): Defeat H.Y.D.E.E. in Single Player Normal 
  mode. 
  Monkee Factory (15 points): Defeat K.R.I.S.S. in Single Player Normal mode. 
  Cry W.U.L.F.E. (25 points): Defeat W.U.L.F.E. in Single Player Normal mode. 
  2 Fast, 2 Serious (15 points): Spawn twenty 'Maximum Charge' lightning bolts 
  in a row in any Single Player mode. 
  Survivor Man (30 points): Complete the game in Survival mode. 
  Gold Farmer (25 points): Earn a Gold medal in all levels of Single Player 
  Normal mode. 
  Everyone Does It (10 points): Complete all levels of Online Cooperative mode. 
  Terrorize This (15 points): Come in first place in 10 Online Multiplayer 
  Destruction matches. 
  Search & Destroy (20 points): Complete any level in Single Player Normal mode 
  with more than $9,000,000,000 of destruction. 
  Cute Overload (10 points): Create the Overload superpower in Single Player 
  Normal mode. 
  Hippy Intimidator (20 points): Complete Sunny Day Farm with all trees 
  destroyed in Free-For-All mode.