Successfully complete the indicated tasks in the following locations:

Library (Reading Room, Basement Stacks, Twisted Stacks)
  The Book Of Pain: Successfully complete any job in any of the Library levels. 
  Captain Of The Guard: Capture The Book Of Pain, and kill twenty paper enemies. 

  Olga The Terrible: Capture the Captain Of The Guard, and successfully complete 
  five jobs in the Library. 
  Dredge: Capture Olga The Terrible, and successfully complete ten Library thief 
  jobs. 

Times Square (Streets, Office, Rooftops)
  Smelly Ned: Successfully complete five containments in the Times Square maps. 
  Dolnasky: Capture Smelly Ned, and collect fifty power-ups. 
  Grimgreave: Capture Dolnasky, and kill twenty gargoyles and/or cherubs using 
  slams. 
  Binky: Capture Grimgreave, and successfully complete ten survivals on the 
  Times Square maps. 

Museum (Rotunda, Mayan, Egypt)
  Grundel: Successfully complete five Museum protections. 
  Sharpshooter Bailey: Capture Grundel, and capture fifteen civil war ghosts. 
  The Maestro: Capture Sharpshooter Bailey, and successfully complete ten Museum 
  survival jobs. 
  Grand Pappy Sargassi: Capture The Maestro and successfully complete fifteen 
  jobs on the Museum levels. 

Cemetery (Graveyard, Altar, Lost Temple)
  Mad Mad Minimo: Earn $50,000 in any Cemetery job. Must be in a single match 
  (survival recommended). 
  The Darkest: Capture Mad Mad Minimo, and kill fifteen Black Slime monsters. 
  The Clawed Menace: Capture The Darkest, and kill fifty Cemetery crawlers 
  (spider like tombstone creatures). 
  The Uprising: Capture The Clawed Menace, and successfully complete ten 
  survival jobs in the Cemetery. 

Any level except for Slime Dunk
  Rotten Slimer: Capture 10 Slimers. 
  Wee Slimer: Capture Rotten Slimer, and win at least three Slime Dunks. 
  Polar Slimer: Capture Wee Slimer, and achieve twenty Slime Dunks on each of 
  the Slime Dunk maps. 
  Glutton Slimer: Capture Polar Slimer, and successfully complete 60 jobs.