The following are known Action Replay Codes for The Last Airbender on Nintendo DS (NDS).

Game ID: VLAE-2F8D6EA5

Master Code – Must Be On
00000000 00000000
00000000 02380010
00000000 00000000
00000000 00000002
00000000 00000000
00000000 02003000

AR Code Fix – Must Be On
62387fdc eba00da6
023fffe8 00000000
02003038 e8bd4038
02387fdc eba00da6
d2000000 00000000

Quick Chi Gain (x100)
02060040 e3a01064