Use these passwords for the corresponding levels:
#2 The Jungle: JASON88
#3 Kong vs. Rat: CHIROS20
#4 New York City: The Museum: TANN29
#5 Kong vs. Ominous: SHAMAN70
#6 New York City: The Zoo: LUA28
#7 Kong Island: LORNA26
#8 Kong vs. Bad Cat: APBATO9
#9 The Swamps: RAMONE52
#10 Kong vs. Ominous: ONIMOUS52
#11 To The Sacred Temple: JENKINS48
#12 Kong vs. Clone: KEEPAL52