Most by Viper; Walk through Walls, Press L to play Turok's rebirth cutscene, Options Menu Control Modifier, Speed Modifier, and Cutscene Modifier by Viper and macrox.
Warp level 3 glitch
812D7B64 C5E7
When you choose warp level 3 from the cheat menu you'll be warped to a place of nothingness. It kind of looks like being high in the sky or in a wall using fly mode.
Game restarts when you choose warp level 3 from the cheat menu
812D7B64 0000
Graphics glitch #1
811A0126 1000
Graphics glitch #2
811A028C 0000
Graphics glitch #3
811A028E 0000
Gun Highlighted In Menu Modifier
80128FE3 000?
Gun Highlighted In Menu Modifier #2
80111C74 000?
Game Always Thinks That You Have ? Gun Selected
80128E2F 000?
You won't be able to select that gun.
Gun Menu Acts Up A Bit When Scrolling Forward
8012901F 0000
Gun Menu Acts Up A Bit When Scrolling Backward
8012901F 0001
Open 1st Gate In Level 1
8114F850 C041
Can't Have Body Armor
80128D27 0000
Infinite Body Armor
81128CE6 5B23
80128D27 0001
Difficulty Modifier
801195DF 000?
00 - Easy
01 - Normal
02 - Hard
Deactivate The Knife
80128CEB 0000
Deactivate The Bow
80128CF3 0000
Fake Infinite Health
81111B1A 1E61
Walk Through Walls
Walk Through Walls. Not Fly mode. Different Code. No up and down or float or walk through floors.
Method. Mem editor must be used.
80112B7B 0001 return to game and screen goes dark or maybe a background solid color.
Again, 80112B7B 0000 and get normal screen
NOW comes the WTW.
80112B83 0001 and from there on in....Walk through any object, any wall, any gate.
Press L To Play Turok's Rebirth Cutscene
D01198E1 0020
80119787 0001
While in any Level, press L and you'll see the scene, but you'll lose a life.
Start At Area Modifier
81128E6E ????
0000 - Level 1
02ED - 1st Checkpoint in Level 1
02EE - 3rd Checkpoint in Level 1
02EF - 2nd Checkpoint in Level 1
02F0 - 1st Savepoint in Level 1
02F1 - 4th Checkpoint in Level 1
02F2 - 5th Checkpoint in Level 1
03E8 - Level 2
03E9 - Part way through Level 2
03EA - Near the small pool above the beginning of Level 2
03EB - In front of the temple about half way through Level 2
03EE - 1st warp square in Level 2
03EF - 1st warp square in Level 2
044D - 1st Checkpoint in Level 2
044E - 2nd Checkpoint in Level 2
044F - 3rd Checkpoint in Level 2
0450 - 4th Checkpoint in Level 2
0451 - 5th Checkpoint in Level 2
04B1 - 1st Savepoint in Level 2
04B2 - 2nd Savepoint in Level 2
04B3 - Savepoint at Hub Ruins
07CF - In front of the Level 2 portal at the Hub Ruins
07D0 - Level 3
0867 - 1st Checkpoint in Level 3
0868 - 2nd Checkpoint in Level 3
0869 - 3rd Checkpoint in Level 3
08CB - 1st Savepoint in Level 3
08CC - 2nd Savepoint in Level 3
0BB5 - In front of the Level 3 portal at the Hub Ruins
0BB6 - Longhunter
0BB8 - Level 4
0F3C - 1st Checkpoint in Level 4
0F3D - 3rd Checkpoint in Level 4
0F3E - 2nd Checkpoint in Level 4
0F9C - 1st Savepoint in Level 4
0F9D - 2nd Savepoint in Level 4
0F9F - In front of the Level 4 portal at the Hub Ruins
0FA0 - Level 5
0FA1 - 1st Savepoint in Level 5
0FA4 - 2nd Checkpoint in Level 5
0FA8 - 3rd Checkpoint in Level 5
0FA9 - 2nd Savepoint in Level 5
0FAA - 4th Checkpoint in Level 5
126A - 1st Checkpoint in Level 5
1386 - In front of the Level 5 portal at the Hub Ruins
1387 - Mantis
1388 - Level 6
170D - 1st Checkpoint in Level 6
170E - 2nd Checkpoint in Level 6
170F - 3rd Checkpoint in Level 6
1711 - 1st Savepoint in Level 6
1713 - 2nd Savepoint in Level 6
176F - In front of the Level 6 portal at the Hub Ruins
1B58 - Level 7
1D24 - 3rd Checkpoint in Level 7
1D27 - 2nd Checkpoint in Level 7
1D29 - 3rd Checkpoint in Level 7
1D2A - 2nd Savepoint in Level 7
1D2B - 1st Savepoint in Level 7
1D2C - 1st Checkpoint in Level 7
1D2D - 5th Checkpoint in Level 7
1D2E - 6th Checkpoint in Level 7
1D31 - 7th Checkpoint in Level 7
1F3F - In front of the Level 7 portal at the Hub Ruins
1F40 - Level 8
2125 - 1st Checkpoint in Level 8
2126 - 1st Savepoint in Level 8
2127 - 2nd Checkpoint in Level 8
2128 - 2nd Savepoint in Level 8
2129 - 3rd Checkpoint in Level 8
212A - 3rd Savepoint in Level 8
212B - 4th Checkpoint in Level 8
212C - 5th Checkpoint in Level 8
216B - Savepoint after T-Rex
2325 - T-Rex
2326 - Room after T-Rex
2327 - Campaigner
Infinite Air
81129030 AAE1
811E85EA F1FF
Have Backpack
80128CEB 0001
80128D2B 0001
Options Menu Control Modifier
80119508 00??
8011950F 00??
??= 00 through 1D
19 = gallery
1A = credits
Speed Modifier
81128D88 ????
81128D8A ????
0000 = Walk
FFFF = Run
Cutscene Modifier
801112B71 00XX This is the actual cut scene modifier code. We find this code somewhat funky and does not invoke as expected.
801112B7A 0001 (for most scenes, otherwise set to 0). This code masks background during cut scene so you can't see status info and Turoks hand.
801112B79 0030 (this code always sets itself to this value during cutscene).
Some of the quantifiers log thus far (more later):
where XX =00 = none
01 = Acclaim Logo
02 = Lizard on Iguana Logo that Turoks weapon are seen being thrown at.
03 = Turok prepare to shoot arrow
04 = Arrow in flight toward Bullseye in opening
05 = Warp points
06 = ?
07 = normal setting when no scene running
08 = ?
09 = Turok fall to death from high place
10 = Mantis Dies
11 = Mantis kills Turok
12 = T Rex Dies
13 = T Rex eats Turok
14 = Longhunter Dies
15 = Campaigner Dies
16 = Campaigner Kills Turok
17 = Turok finds Key
18 = Campaigners complex destructs
19 = Turok runs for life and jumps to water outside complex
0A = Turok falls to ground on back
0B = Turok rebirth
0D = Longhunter appears
0F = Longhunters truck destructs
1A = Credits
1B = Turok Stands with knife after rebirth
Weird Null Weapon
80128CEC 0001
This adds a 2nd knife to your inventory. It doesn't make any sound, and if you scroll right, you can make other weapons appear when this one is chosen.
Training Mode Timer Modifier
811196B8 4???
Training Mode Best Time Modifier
811196BC ????
811196BE ????
Auto Shotgun's Clip Is Always Spinning
80128BC0 00BD
Ammo Display Modifier (While Paused)
81111B16 ????
On-Screen Regular Arrows Modifier
810585E8 2402
810585EA ????
On-Screen Tek Arrows Modifier
810585D0 2403
810585D2 ????
On-Screen Bullets Modifier
810585F0 2402
810585F2 ????
On-Screen Explosive Shells Modifier
810585FC 2403
810585FE ????
On-Screen Regular Shells Modifier
81058614 2402
81058616 ????
On-Screen Power Cell Ammo Modifier
810585F8 2402
810585FA ????
On-Screen Minigun Ammo Modifier
81058618 2402
8105861A ????
On-Screen Grenade Ammo Modifier
81058634 2402
81058636 ????
On-Screen Quad Rocket Ammo Modifier
81058638 2402
8105863A ????
On-Screen Fusion Cannon Ammo Modifier
8105864C 2402
8105864E ????
On-Screen Chronosceptor Ammo Modifier
8105862C 2402
8105862E ????
Unlimited Item Pickups
81092F84 2400
None of the item pickups that are laying around will disappear when picked up, so can can keep running over them and get your fill.

All Objects Size Modifier
8102037C 0800
8102037E 00ED
810003B4 3C1B
810003B6 ????
810003B8 0800
810003BA 80E1
810003BC AC9B
810003BE 016C
This only effects the non-random items. Randomly generated items (the things enemies drop) will still be normal size.
Stop All Code
D0137B54 0008
81037310 2400
D0137B54 0004
81037310 E488
Press Up on the dpad to activate, Down to deactivate. This stops a lot of enemy movement, stops them from attacking you, stops hooks and such from swinging, etc, but it also stops you from attacking.
Turok's Foot Appears In Top Right Of Screen
80128E30 0000
Air Meter Doesn't Appear Underwater (You Still Take Damage When Down Too Long)
81003820 2400
Infinite Air (Without Meter On-Screen)
8105C8C4 2400
Weapon Modifier
80128E30 00??
64 - Knife
66 - Bow
67 - Pistol
68 - Assault Rifle
69 - Pulse Rifle
6A - Shotgun
6B - Auto Shotgun
6C - Minigun
6D - Grenade Launcher
6E - Alien Weapon
6F - Fusion Cannon
70 - Rocket Launcher
71 - Particle Accelerator
72 - Chronosceptor
Ammo Display Modifier
80128E2E 00??
Everything Respawns/Resets On Warp (Including Gates/Doors)
81083D28 2400
All Enemies Respawn And Gates Reset On Warp
81034888 2400
All Pickups Respawn On Warp
810348D0 2400
You'll get stuck keys, but you can get away from them by trying to move away just as the cutscene ends.
All Enemies And Pickups Are Gone, Doors/Gates Open, Etc
81083CBC 2418
81083CBE FFFF
All Enemies Are Gone And Doors/Gates Are Open
81032E74 2402
81032E76 FFFF
All Pickups Are Gone
8103205C 2402
8103205E FFFF
Don't Switch To Knife While Underwater
81053B30 1000
81053B32 001F
Weapon Doesn't Switch When You Surface
81053CF0 1000
Able To Switch Weapons Underwater
8105B5C0 2400
Walk Underwater
81053BE6 0000
I'd use this with the moon jump / jump height mod, otherwise you can get stuck pretty easily--Turok can't jump for shit underwater.
Arrows Always Fully Charged (Max Distance)
8107A9F0 3C01
8107A9F2 7800
8107A9F8 AE01
Arrows Always Fully Charged (Hold Z For Fast Fire)
8107A9E8 3C01
8107A9EA 8013
8107A9EC A420
8107A9EE 7B54
8107A9F0 3C01
8107A9F2 7800
8107A9F8 AE01
Particle Accelerator Always Fully Charged
8107C0B8 3C01
8107C0BA 7800
8107C0BC AE01
Chronosceptor Always Fully Charged
8107C88C 3C01
8107C88E 7800
8107C894 AE01
Pulse Rifle Shots Are Red
81292EF2 F820
Pulse Rifle Shots Are Red (No Impact Visual)
8129D558 0000
8129D55A 0000
8129D55C 0000
8129D55E 0000
8129D560 0000
8129D562 0000
8129D56E 016C
Amount Of Time Spiritual Invincibility Lasts Modifier (Default 43E1)
8109183E ????
Always Have Spiritual Invincibility
81128E68 43E1
Spiritual Invincibility Never Runs Out Once You Have It
8105328C 2400
Always Have Spiritual Invincibility Colors (But Not Slow Effect)
81007E24 2400
No Flashing Colors During Spiritual Invincibility
81007E2C 2400
Area Doesn't Go Dark During Spiritual Invincibility
81025714 2400
81025724 1000
Spiritual Invincibility Cheat Works Without Darkness Or Colors
81052CFA D270
Spiritual Invincibility Doesn't Make You Invincible To Enemies
810710E0 2400
Invincible To Enemies
810710AC 1000
Big Head Mode Always On
810176DC 2400
All Weapons Cheat Includes Infinite Ammo
81052D60 2400
Infinite Ammo Cheat Gives You Tek Arrows
81052DF2 014C
Infinite Ammo Cheat Gives Exploding Shells
81052DFE 0150
Modify The Amount Of Bullets/Plasma Cells The Infinite Ammo Cheat Gives You (Default 0064)
81052DB6 ????
81052DD2 ????
Modify The Amount Of Grenades/Shells The Infinite Ammo Cheat Gives You (Default 0014)
81052DBA ????
81052DDA ????
Modify The Amount Of Arrows The Infinite Ammo Cheat Gives You (Default 001E)
81052DC6 ????
81052DDE ????
Modify The Amount Of Mini Gun The Infinite Ammo Cheat Gives You (Default 007D)
81052DE2 ????
Modify The Amount Of Rockets The Infinite Ammo Cheat Gives You (Default 0002)
81052DE6 ????
Modify The Amount Of Fusion Charges The Infinite Ammo Cheat Gives You (Default 0002)
81052DEA ????
Modify The Amount Of Chronosceptor Ammo The Infinite Ammo Cheat Gives You (Default 0002)
81052DEE ????
All Weapons Cheat Gives You Tek Arrows
81052D86 014C
All Weapons Cheat Gives Exploding Shells
81052D92 0150
Modify The Amount Of Bullets/Plasma Cells The All Weapons Cheat Gives You (Default 0064)
81052D6A ????
Modify The Amount Of Grenades/Shells The All Weapons Cheat Gives You (Default 0014)
81052D6E ????
Modify The Amount Of Arrows The All Weapons Cheat Gives You (Default 001E)
81052D72 ????
Modify The Amount Of Mini Gun The All Weapons Cheat Gives You (Default 007D)
81052D76 ????
Modify The Amount Of Rockets The All Weapons Cheat Gives You (Default 0006)
81052D7A ????
Modify The Amount Of Fusion Charges The All Weapons Cheat Gives You (Default 0003)
81052D7E ????
Modify The Amount Of Chronosceptor Ammo The All Weapons Cheat Gives You (Default 0002)
81052D82 ????