Zoo Keeper Unlockables
DS | Submitted by sadfasGekimuzu
Gekimuzu is the secret hardest difficutly.
Get a high score on all four modes of gameplay to unlock it.
DS | Submitted by GamesRadarUnlock Expert Difficulty
Get the top score on Quest, Time Attack, Tokoton 100 and Zoo Keeper
If you are able to beat Toko Town 100, you will gain access to Expert Difficulty. To beat Toko town 100, you will have to get 100 of each kind of animal in various levels.