Here is the full list of all 25 Spirits of Xanadu achievements.
Stay aboard the Xanadu
Beat the game in 10 minutes or less
Become king of the zombies
Beat the game without dying
Fly the Xanadu into a star
Destroy a robot with the showers
Fly the Xanadu back to Earth
Obtain every page
Get killed by the environment
Obtain every audiolog
Scan the Xanadu with the Survey Bot
Destroy every cleaner bot
Read every e-mail
Unlock the bonus mini-games
Smoke yourself to death
Put every toilet seat up
Experience an attack of flatulence
Get drunk
Boil away all the water and burn the toast
Find and read "The Unusual Death of Governor Li"
Eat every donut
Obtain every weapon
Get killed by the suicide droid
Destroy 3 bots in 2 seconds or less
Score a basketball goal