Here is the full list of all 11 TWWWR achievements.
Beat the extra ending on expert
Beat the game on expert
Collect all of the trinkets
beat the game in under 35 minutes
Beat the game without killing any common enemies
Heal the tower
Finish the game on any difficulty
Finish the Lily sidequest
Beat the 3 main arena stages
Collect half of the trinkets
Go home early