The following are known CTRPF AR Cheat Codes for Etrian Odyssey IV: Legends of the Titan on Nintendo 3DS (3DS).

00040000000EA600.txt

[Max/Inf Money]
08205DC8 3B9AC9FF

[Daychanger]
18205DCC 00001111

[Max Level after battle (whole Party)]
08205E9C 0098967F
08206008 0098967F
08206174 0098967F
082062E0 0098967F
0820644C 0098967F

[Daytime Changer]
28205DD0 00000011

[Max Burst Bar on Battle]
203B621C 00000005

[All unlocked on Item Shop]
C0000000 0000018D
2820CA30 000000FF
DC000000 00000001
D1000000 00000000

[10 Char 255 Skill Points]
C0000000 0000000A
28205EB5 000000FF
DC000000 0000016C
D1000000 00000000

[10 Char Max HP/TP]
C0000000 0000000A
18205E5C 0000270F
18205E60 0000270F
18205E70 0000270F
18205E74 0000270F
08205E98 270F270F
DC000000 0000016C
D1000000 00000000

[10 Char Max Stats]
C0000000 0000000A
08205E64 03E703E7
08205E68 03E703E7
18205E6C 000003E7
08205E78 03E703E7
08205E7C 03E703E7
18205E80 000003E7
DC000000 0000016C
D1000000 00000000

[10 Char.Max Lvl After Battle]
C0000000 0000000A
08205E9C 05F5E0FF
DC000000 0000016C
D1000000 00000000

[Item/Monster Compendium Unlocked]
C0000000 00000400
2820D6D0 00000005
DC000000 00000001
D1000000 00000000