ZOO KEEPER CHEAT CODES
None.
ZOO KEEPER TIPS & TRICKS
None.
ZOO KEEPER UNLOCKABLES
Extra hidden difficulty level
Unlockable 4th difficulty, "gekimuzu".
Extra hidden difficulty level
To obtain a 4th difficulty, you need to get the highscore on all 4 modes of gameplay.
Zoo keeper
1200000+ points needed
Tokoton 100
1800000+ points needed
Quest mode
10000+ Yen needed
Time attack
600000+ points needed
Extra hidden difficulty level
After getting all 4 high scores, a 4th difficulty appears in the top line of the option menu
Expert difficulty
Record the top score in Zoo Keeper, Tokoton 100, Quest and Time Attack modes