Here is the full list of all 16 Stick it to The Man achievements.
Read the minds of everyone ever
Never get noticed by the helicopter
Climb the asylum tower without alerting any nurses
Read the minds of the drowned skeletons
Read Ray's mind
Get chased by 5 enemies at the same time
Mind-read the recently departed
Read the minds of an unexpected couple
Read Luigi's mind while he's singing
Give poor Ron the perfect idea for a date
Read the mind of an eaten fish
Read the minds of the ambulance personnel
Read Harry's mind while he's passed out
Read the mind of a lonely cat
Return a totally sweet alien to the stars
Have enemies chasing other enemies chasing you