Full list of all 10 1001 Spikes achievements worth 1,000 gamerscore. It takes around 25-30 hours to unlock all of the achievements on Xbox One.
Purchased every unlockable in Conseil's Duty Free
Unlocked every character and costume
Completed Antarctica
Completed the Lost Levels
Completed every stage of the main game as Aban Hawkins with a cumulative time of less than 30 minute
Found the Key of Serpentis
Completed the Golden Temple
Collected all golden skulls
Unlocked Space Marine Aban
Completed the Tower of Nannar