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

Game ID: AN6E-BCE6C580

Infinite Lives
22301609 00000063

Infinite Brother Calls
2230160a 00000005

Low Time
0230156c 0000000f

GOLD RANKS:

Stage 1: All Gold
12301620 00000fff

Stage 2: All Gold
12301622 00000fff

Stage 3: All Gold
12301624 00000fff

Stage 4: All Gold
12301626 00000fff

Stage 5: All Gold
12301628 00000fff

Stage 6: All Gold
1230162a 00000fff

Stage 7: All Gold
1230162c 00000fff

Stage 8: All Gold
1230162e 00000fff

Stage 9: All Gold
12301630 00000fff

Stage 10: All Gold
12301632 00000fff

Stage 11: All Gold
12301634 00000fff

Stage 12: All Gold
12301636 00000fff

Stage 13: All Gold
12301638 00000fff

Stage 14: All Gold
1230163a 00000fff