The following are known Action Replay Codes for Call of Duty: World at War on Nintendo DS (DS).

These codes are for the European version of the game.

Game ID: CALP-72EF25EE

All Levels/Difficulties Open
021b7848 ffffffff

All Challenges Open
021b7860 ffffffff

Infinite Health
621c16d8 00000000
b21c16d8 00000000
0000012c 0500012c
d2000000 00000000

Walk Through Walls ON (L+Up)
94000130 000001bf
621c16d8 00000000
b21c16d8 00000000
dc000000 000000c4
a0000000 00000000
b0000000 00000000
dc000000 0000006c
90000000 00000001
20000000 00000002
d2000000 00000000

Walk Through Walls OFF (L+Down)
94000130 0000017f
621c16d8 00000000
b21c16d8 00000000
dc000000 000000c4
a0000000 00000000
b0000000 00000000
dc000000 0000006c
90000000 00000002
20000000 00000001
d2000000 00000000

Boot Animation Test Menu
020032d4 e3a00000