The following are known Action Replay Codes for Call of Duty: Black Ops on Nintendo DS (DS).

These codes are for the European version of the game.

Game ID: BDYP-BC372203

Press Select to Unlock All Stages
94000130 fffb0000
121ba9b0 0000ffff
d2000000 00000000

Massive Health
020b7f70 e3a01427
020b7f74 e584100c

Infantry AI Hardly Shoots
521d6438 8a00001c
021d7a20 e12fff1e
021d819c e12fff1e
d2000000 00000000

Infantry AI Doesn’t Use Grenades
521d6438 8a00001c
021d8a3c e12fff1e
d2000000 00000000

Zombies Don’t Melee (Select+Up ON, Select+Down OFF)
94000130 ffbb0000
0215082c e1a00000
d0000000 00000000
94000130 ff7b0000
0215082c 0a000008
d0000000 00000000

Test Levels
021a53bc 00000001

Display Ai Waypoints
221a53ac 00000001

Display Pathways
221a53a0 00000001

All Perks/Challenges/Levels Available
221a5384 00000001