The following are known Action Replay Codes for DreamWorks Shrek Forever After on Nintendo DS (NDS).

Game ID: VSKE-A62E3242

Master Code – Must Be On
00000000 023f0000
00000000 02380010
00000000 00000000
00000000 00000002
00000000 00000000
00000000 02001000

Fix Code – Must Be On
62387fdc eba005a6
023fffe8 00000000
02001038 e8bd4038
02387fdc eba005a6
d2000000 00000000

Infinite Health (Always ON)
02067728 60012140
1206772c 00001c08

Infinite Health (Select+L ON, Select+R OFF)
94000130 000001fb
02067728 60012140
1206772c 00001c08
d2000000 00000000
94000130 000002fb
02067728 ffd2f025
1206772c 00000300
d2000000 00000000

Moonjump
120704ec 000062e8
94000130 fffd0000
120704ec 00002000
d2000000 00000000