The following are known Action Replay Codes for Whac-A-Mole on Nintendo DS (NDS).

Game ID: AWME-4FF7C087

Press L+Up for More Time
94000130 000001bf
12310c7c 0000042e
02310c80 00105700
d0000000 00000000

Press L+Down for No Time
94000130 0000017f
12310c7c 00000000
02310c80 00000000
d0000000 00000000

Press SELECT for Max Score
94000130 000003fb
0222bcbc 3b9ac9ff
0222bcb8 3b9ac9ff
d0000000 00000000

Press RIGHT for Shapes Complete
94000130 000003ef
2222bcf0 00000064
d0000000 00000000