Every level can be beaten all 22 of them
Level 01 Password: (none)
Level 02 Password: k1
Level 03 Password: hottub
Level 04 Password: trashcan
Level 05 Password: ciarules
Level 06 Password: cioaosucks
Level 07 Password: ikes
Level 08 Password: fenwick
Level 09 Password: kegstand
Level 10 Password: tprompt
Level 11 Password: tdside
Level 12 Password: ppdryarea
Level 14 Password: krasnow
Level 15 Password: webcam
Level 16 Password: mertin
Level 17 Password: hotwater
Level 18 Password: hospital
Level 19 Password: sub2
Level 20 Password: jazzmans
Level 21 Password: sandy
Level 22 Password: corky