The following are known Action Replay Codes for Turn It Around on Nintendo DS (NDS).

Game ID: AQQE-C1A47D4D

Games Can Be Repeated in Challenge Mode
020a550c 00000000

Press L for 1 Challenge Remaining
94000130 fdff0000
220a5508 00000018
d2000000 00000000

Pinch Hitter: Max Score
921cb5a4 00000000
221cb5a4 000000ff
d2000000 00000000

Skateboard: Press SELECT for Max Score
94000130 fffb0000
121caca2 00002710
121caca4 00002710
d2000000 00000000

Fishing: Press R to Finish
94000130 feff0000
121cb4d0 00000000
d2000000 00000000