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