The following are known Action Replay Codes for Zoo Keeper on Nintendo DS (NDS).
Game ID: AZKE-DD24DF4F
Infinite Time (Zoo Keeper/Tokoton/TA Modes)
92062200 00000202
62062230 00000000
b2062230 00000000
10000000 00007000
10000004 00007000
d2000000 00000000...
620621f8
92062200 00000101
actionactionreplayactionreplaycodes
b20621f8
b2062230
codebreaker code
codes
d2000000
game id
infinite time
infinite time (story)
infinite time (zoo keeper/tokoton/ta modes)
keeper
nds
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nintendo forums
replayreplaycodes
story
us
zoo
zoo keeper
zoo keeper on nintendods
zoo keeper/tokoton/ta modes