Centipede/Millipede is an Xbox Live Arcade game

Complete each achievement to get the allotted gamerscore.

Unlockable         How to Unlock
Slayer (10)        Score over 16,543 to beat the high score table: 
                   Centipede - Default difficulty.
Stalker (10)       Score over 50,000 points: 
                   Centipede - Default difficulty.
Maniac (20)        Score over 15,000: 
                   Centipede - Throttle Monkey mode.
Spirit (20)        Have 3 lives in hand: 
                   Centipede - Default difficulty.
Barren (20)        Destroy all mushrooms on the screen:
                   Centipede - Default difficulty.
Exterminate (20)   Reach wave 8 without a centipede reaching the bottom: 
                   Centipede - Default difficulty.
Prowler (10)       Score over 41,916 to get on the high score table: 
                   Millipede - Default difficulty.
Marauder (10)      Score 125,000 points: 
                   Millipede - Default difficulty.
Lunatic (20)       Score 25,000 points: 
                   Millipede - Throttle Monkey mode.
Entity (20)        Have 3 lives in hand: 
                   Millipede - Default difficulty
Poison (20)        Destroy a spider for 1800 points: 
                   Millipede - Default difficulty.
Eradicate (20)     Reach wave 8 without a millipede reaching the bottom: 
                   Millipede - Default difficulty.