Go into the playhouse and get to a room where you see a Cyclops playing pool. Kill it, then jump on the pool table. The "Cheat Activated" message will appear. Look in the inventory to find the "Book of Shadows".
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Game Shark Codes
Infinite Health
81075B18 0000
81075B1A 2710
Max Health
81075B14 0000
81075B16 2710
Max Shadow Charge Level
81075B20 0000
81075B22 2710
Max Shadow Charge
81075B24 0000
81075B26 2710
Max Dark Souls Collected
81075F48 0078
Infinite Air
81075B1C 0000
81075B1E 2710
Infinite Voodoo
81075B28 0000
81075B2A 2710
Infinite MP-909
81075B2E 0063
Infinite Violator
81075B32 03E7
Press L to Levitate
D0058F35 0020
81075578 4130
Health Meter Displayed on Screen
81075B10 0000
81075B12 00FF
Health Meter Not Displayed on Screen
81075B10 0000
81075B12 0000
Have Pistol
810307B0 0007
810307B2 060B
Infinite Bullets
81075B3A 03E7
Have Accumulator
810306D0 0001
810306D2 000B
Infinite Accumulator Ammo
810306D6 7FFF
Accumulator Doesn't Need Ammo
810306D6 FFFF
Have 0.9-SMG
81030730 000C
81030732 0E0B
Infinite 0.9-SMG Ammo
81030736 7FFF
0.9-SMG Doesn't Need Ammo
81030736 FFFF
Have Shotgun
810307D0 001A
810307D2 160B
Infinite Shotgun Ammo
810307D6 7FFF
Shotgun Doesn't Need Ammo
810307D6 FFFF
Have Violator
81030810 001E
81030812 190B
Infinite Violator Ammo
81030816 7FFF
Violator Doesn't Need Ammo
81030816 FFFF
Have MP-909
81030870 000D
81030872 0B0B
Infinite MP-909 Ammo
81030876 7FFF
MP-909 Doesn't Need Ammo
81030876 FFFF
Have Retractor
810308B0 0017
810308B2 140B
Infinite Retractor Ammo
81030816 7FFF
Retractor Doesn't Need Ammo
81030816 FFFF
Have Cadeaux
810309D0 0005
810309D2 040B
Infinite Cadeaux Ammo
81075B36 03E7
Have Nettie's File (Normally Start With This)
81030630 0000
81030632 100B
Have The Prophecy
81030650 0016
81030652 130B
Have Jack's Diary
81030670 0018
81030672 150B
Have Book Of Shadows
81030690 0004
81030692 030B
Have Luke's Teddy Bear
810306B0 001D
810306B2 180B
Have Enseigne
810306F0 000A
810306F2 080B
Have Asson
81030710 0002
81030712 010B
Have Flashlight
81030750 000E
81030752 0A0B
Have Engineer's Key
81030770 0009
81030772 070B
Have Flambeau
81030790 000B
81030792 090B
Have Prison Card
810307F0 0015
810307F2 120B
Have Marteau
81030830 0012
81030832 0F0B
Have Baton
81030850 0003
81030852 020B
Have Calabash
810308F0 0006
810308F2 050B
Have Prism
81030950 0014
81030952 110B
Have L-Eclipser: La Lune
81030970 0010
81030972 0D0B
Have L-Eclipser: La Soleil
81030990 001C
81030992 170B
Have L-Eclipser: La Lame
810309B0 0011
810309B2 0C0B
Unlock Bayou Paradis, Louisiana (Normally Unlocked)
800309F2 0001
Unlock Mordant St., Queens, New York
80030A0E 0001
Unlock Gardelle County Jail, Texas
80030A2A 0001
Unlock Down Street Station, London
80030A46 0001
Unlock Deadside: Marrow Gates (Normally Unlocked)
80030A62 0001
Unlock Paths of Shadow
80030A7E 0001
Unlock Wasteland: Temple of Life
80030A9A 0001
Unlock Asylum: Gateway
80030AB6 0001
Unlock Asylum: Cathedral of Pain
80030AD2 0001
Unlock Asylum: Engine Block
80030AEE 0001
Unlock Temple of Fire (Toucher)
80030B0A 0001
Unlock Asylum: Cageways
80030B26 0001
Unlock Asylum: Playrooms
80030B42 0001
Unlock Temple of Prophecy (Marcher)
80030B5E 0001
Unlock Asylum: Lavaducts
80030B7A 0001
Unlock Temple of Blood (Nager)
80030B96 0001
Unlock Asylum: Undercity
80030BB2 0001
