Here is the full list of all 10 Perfect Vermin achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
100% Perfect Vermin
Break 200 Objects.
"Turn off" every light switch on floors 1-4.
Get the Newscaster to call you dense.
Complete Perfect Vermin in under 4 minutes and 30 seconds. (Timers must be On)
Complete Perfect Vermin without ever running out of time. (Timers must be on)
Complete Perfect Vermin.
Reach the secret room.
Complete Perfect Vermin having only destroyed Vermin. (Doors are excluded)
Attack the same fire door 3 times.