The following are known Action Replay Codes for MLB 2K8 Fantasy All Stars on Nintendo DS (NDS).

Game ID: YLBE-44DB0261

Press START for 0 Strikes
94000130 fff70000
6210a9d4 00000000
b210a9d4 00000000
100004bc 00000002
d2000000 00000000

Press SELECT for 2 Strikes
94000130 fffb0000
6210a9d4 00000000
b210a9d4 00000000
100004bc 00000002
d2000000 00000000

Press START for 0 Balls
94000130 fff70000
6210a9d4 00000000
b210a9d4 00000000
100004c0 00000003
d2000000 00000000

Press SELECT for 3 Balls
94000130 fffb0000
6210a9d4 00000000
b210a9d4 00000000
100004c0 00000003
d2000000 00000000

Press START for 0 Outs
94000130 fffb0000
6210a9d4 00000000
b210a9d4 00000000
100004c4 00000002
d2000000 00000000

Press SELECT for 2 Outs
94000130 fffb0000
6210a9d4 00000000
b210a9d4 00000000
100004c4 00000002
d2000000 00000000