100% Headlander
Find all alpha, beta, and gamma terminals
Pop your head into every room to have a look-see
Use Auto Sentries to take out 10 enemies
Boost for 5.2155e-13 parsecs (10 miles)
Find all the mid-range zap locations
Play a game of H.O.R.S.E.
Dock with every body type
Drain all of the Energy S.A.C.s
Unlock all Upgrades
Find all the bodies for Athena-7
Find a power gem charging Shepherd and return to Rhea-6
Take out the Spectrum Shepherds
Take Methuselah offline
Defeat Methuselah Titan
Used Overcharge Boost to take out 25 enemies
Find the entrance to Methuselah's Core
Find your body and witness Earl's sacrifice
Trigger all of the possible dance subroutines
Use the long range zap to Luna Citadel
Defeat the Kill Queen
Upload the Archive Data to Earl
Shut down the power stations in the Power Dome to gain access to the Archives
Destroy 25 enemies using melee attacks
Execute 50 headshots
Align the Satellite Chalet dishes to gain access to the Archives
Kill MAPPY without taking his map data
Find Frank the Dog and return him to Eudora-5
Thrust through the Pleasure Port to find the Satellite Chalet
Escape the Starcophagus
Use explosions to kill 5 enemies