The following are known CTRPF AR Cheat Codes for Harvest Moon 3D: The Lost Valley on Nintendo 3DS (3DS).

000400000012BE00.txt

[Unlimited Fertilizer]
0906A1CE 00000063

[Max Affection villagers]
C0000000 00000030
1907D556 000003E8
DC000000 0000000C
D2000000 00000000
D0000000 00000000

[Max Affection Sprites]
C0000000 00000008
1907D7A8 000003E8
DC000000 0000000C
D2000000 00000000
D0000000 00000000

[x50 any item in bag (if any)]
C0000000 0000007A
2906A24E 00000032
DC000000 00000004
D2000000 00000000
D0000000 00000000

[Full Water Can]
29069FB7 000000FF

[Super Cows]
C0000000 0000000F
0097DED8 0001060B
1907DEE1 00000111
0907DEE4 00002500
DC000000 00000060
D2000000 00000000
D0000000 00000000

[Ride 1st Animal in Barn]
2907DEE2 000000C1

["Super" Chickens]
C0000000 0000000F
2907D9AC 00000008
2907D9AF 00000000
0907D9B8 25000000
DC000000 00000060
D2000000 00000000
D0000000 00000000