Here are some awesome codes that you put in at the Enter Cheat screen. 
Once entered, there will be a new option on the main menu: Cheat Menu. 
from here, you can turn the cheats on/off.

RBNSMTH: Robin's Cheat (all weapons, infinite ammo, invincibility, 
big heads, show credits.)

CLLTHTNMTN: Quack Mode (rough animation and graphic errors.)

THSSLKSCL: Spirit Mode (same effect as spiritual invincibility.)

DLKTDR: Pen and Ink Mode (white background outlined with "ink.")

SNFFRR: Disco mode (disco effect with dancing enemies.)

FRTHSTHTTRLSCK: Infinite Lives.

THBST: Gallery with rotating enemies.

DNCHN: Tiny Enemy Mode.

NSTHMNDNT: Enemies are red arrows on map.

LLTHCLRSFTHRNB: Weird Colors Mode

NTHGTHDGDCRTDTRK: The Big Cheat (several cheats, including level 
and boss WARPS.

LKMBRD: Allows you to float anywhere in a level, through walls and area boundaries. Submitted
By: Jakob (OTACON120@webtv.net)

Turok: Dinosaur Hunter
------------------------------------------------------------------------

Here is a breakdown of the locations of all the keys and pieces of the Chronosceptor that you can
find in Turok. While we're sure this will be quite helpful, our advice to you is to not use it. This is an
outstanding game, and one of the best parts of the game is exploring the levels; however, we know
what it feels like to be stuck so we're giving you the answers anyway. Just don't use them as a
crutch. Also, please note that we've labeled the keys by where they go in your inventory, not in the
order that you get them. 

Level 1

First Level 2 Key: Go straight from the very beginning of the game and you'll find this one, it's quite
easy. 

Second Level 2 Key: Along the pathway to the left of the first key you'll see a vine-covered wall to
your left (your map will show the location). Climb up and you've got the second level 2 key. 

Third Level 2 Key: Take the second route to the right of where you found the first key, and you'll
eventually come to an island with two soldiers and the third key for level 2. 

First Level 3 Key: This key is located just south of the teleporter that takes you to the unchartable
maze of green obelisks. 

Second Level 3 Key and the Chronosceptor Piece: Inside the unchartable maze of green obelisks
you'll find the second level 3 key as well as the first piece of the Chronosceptor. Look carefully. 

Third Level 3 Key: After you fall into the dry well you'll come across the first level 3 key right
before the teleporter. 
------------------------------------------------------------------------

Level 2

First Level 4 Key: There is a hidden cave inside the pond to the left of the first village you encounter.
This cave is unchartable, but if you keep going to the left and up you'll eventually find a cavern that
leads to the first level 4 key.


Second Level 4 Key: You can see this key across a chasm in the cliff face. To get to it you must go
to the left and fall down right next to the treetop that is sticking up from over the side. Follow the
cavern and you'll find the second level 4 key. 

First Level 5 Key: Take the path to the right of the level exit transporter and you'll find the first level
5 key. 

Second Chronosceptor Piece: If you take a hard left just past the temple with the three soldiers that
drop from the sky (there are also two statues holding flames), you'll find a climbable wall. Follow the
passage until you come to a cliff. Use your map to locate the two platforms and jump down. The
Chronosceptor piece is on the second platform. 
------------------------------------------------------------------------

Level 3

Third Level 4 Key: Take the transporter inside the temple at the far end of the second tier of houses.
Jump to the ledge on the west side and then follow it to the key. 

Second Level 5 Key: This key is located at the end of the corridor found at the bottom of the large
descending stairs that you activate with a switch on the upper platform to the left. The only way to
the switch is to go up and around to the right. 

Third Level 5 Key: Beat the boss at the end of the level and you'll be rewarded with the third level 5
key. 

Third Chronosceptor Piece: Climb the vine wall in the northwest corner of the map as you take the
platforms to the boss temple and you'll find the piece you seek. 
------------------------------------------------------------------------

Level 4

First Level 6 Key: After you cross the first bridge head southwest. After a checkpoint, you'll come
to a wall with a fireball dude on top. Kill him, then jump up to the platform to open the gate. At the
next intersection take a right and it will lead you to the first level 6 key. 

Second Level 6 Key: After you cross the bridge at the beginning of the level, go to the southeast
corner of the open area and you'll see a small ledge. Follow the path and you'll come to the second
level 6 key. 

First Level 8 Key: This key is just to left as you enter the level, but you can only get to it by falling
into the water and heading west to the underwater cavern that leads to a series of jumps. Follow the
path and you'll find the key. 

Fourth Chronosceptor Piece: At the intersection where you took a right to get the first level 6 key
take the left route. This will lead to a large temple, to the left of which is the fireball dude. Kill him
and take the teleporter that faces due east (the other six just drop you in the lava). This path will lead
to the Chronosceptor piece. Hint: If you're having trouble exiting the area and have an extra life, try
avoiding the save point and heading straight for the Chronosceptor piece. After you get it, die, and
you'll come back to life at the checkpoint outside the dungeon with your Chronosceptor piece in
hand. 
------------------------------------------------------------------------

Level 5

Fifth Chronosceptor Piece: Head down into the catacombs and take a left at the two doors. Take
your first right, and then enter the room at the end of the hall. Cross the water, and then go into the
drain on the north wall. Follow the path and you'll come to another hallway. To the left there will be
another drain. This will lead you to the Chronosceptor piece. 

Third Level 6 Key: Take the same route you would take to get to the Chronosceptor piece, but don't
go into the drain in the hallway. Instead go down the hallway, solve the catacomb switch junction, go
through the cavern, then you'll find the key on top of the structure in the center of the pool. 

Second Level 8 Key: Head down into the catacombs and then enter either of the two doors in the
first room you enter. Kill the fireball demon, then head up the stairs. Follow the path (even through
the swinging hooks) until you get to the key room with a fireball demon. Kill the demon and he'll give
you access to the key. 

Third Level 8 Key: Head down into the catacombs and enter either of the two doors in the first room
you enter. Jump into the water behind where the fireball demon is, or was, and head down. At the
bottom of the pool is a tunnel that leads to a transporter that will take you to a boss. Beat the Mantis
and the key is yours. 
------------------------------------------------------------------------


Level 6

Third Level 7 Key: First, you must find the big tree and travel up into the treetops. Once you reach
the first checkpoint, the path splits three ways for the first time. Take the path to the east and it will
bring you to the third level 7 key. 

Second Level 7 Key: Again, you must find the big tree and travel up into the treetops. Once you
reach the first checkpoint the path splits three ways for the first time. Take the path to the west and
follow it to a save point and a transporter. Take the transporter and go through the villages and then
through the gate. Continue on down the path until you enter a cave with a save point. As you exit the
cave, you'll see a small patch of grass to the left (or south). Use the platform to get to the southern
cave and then follow the path. Now, you'll need to jump off the platform with the rocket to get down
to the second level 7 key. 

First Level 7 Key: From the point where you jumped off onto the small grass platform to go to the
south (and the second level 7 key) cave, head across the footbridge and through the village to the
transporter. Follow the path and it will lead you to the first level 7 key. 

Sixth Chronosceptor Piece: Take the eastern path from where you got the first level 7 key, and it will
lead you to the exit transporter. To the left of the exit transporter there is a small ridge on the side of
the cliff. Drop down and then jump over to the platform to claim your prize. 
------------------------------------------------------------------------


Level 7

Seventh Chronosceptor Piece: Work your way through the level by solving the various switch
puzzles until you reach the area with lava pits and dinosaur bones. If you head to the northwest
corner of this area you should be able to see a couple of brown tunnels on your map screen. Fall
down to this area and then head down the tunnel and over the bridge. Go through the maze and you'll
come to a lava swamp. Before you leave this area you'll need to do two things. First, head east and
you'll encounter moving platforms that lead upward, but don't go up them yet. Just around the corner
and to the left there is a small area with an entrance to a different, smaller pool of lava. Jump into
the lava and you'll find a hidden passage near the bottom. Swim through the passage and you'll find
land on the other side. This path will lead you to the seventh Chronosceptor piece. Now take the
moving platforms to get to the next area. 

Fourth Level 8 Key: From the moving platforms, you must blast your way through some tight spots
and make some difficult jumps. You must kill everyone along this path, otherwise the platforms that
you need to make the jumps won't appear. At the end you'll find the fourth level 8 key. Take the
transporter to the left and you're on your way. 

Fifth Level 8 Key: After the transporter, just keep following the path. Just past the next checkpoint
you'll find a switch along the wall on the right side (or south). Activate it, and head back west. Along
the north wall, there will be an opening behind a platform (it is shown as a large pink square on your
map). Follow the passage and it will lead you to the fifth level 8 key. 
------------------------------------------------------------------------


Level 8

Eighth Chronosceptor Piece: This one's easy. It's in the same room as the save point right after you
defeat the T-Rex. That is, if you can beat the T-Rex.Fifth Level 8 Key: After the transporter, just
keep following the path. Just past the next checkpoint you'll find a switch along the wall on the right
side (or south). Activate it, and head back west. Along the north wall, there will be an opening
behind a platform (it is shown as a large pink square on your map). Follow the passage and it will
lead you to the fifth level 8 key. 
The Chronoseptor piece is located inside the green circle surrounded by obelisks.
The passage leads to the second level 5 key. 
The lava pool may look dangerous, but it's not. Hop in and you'll find a secret passage. 
Don't even attempt to climb these moving platforms until you have full health and the Chronosceptor
piece. 
Push the button. and the passage will open to the final level 8 key. 

------------------------------------------------------------------------

Weapons 

No game has ever had the arsenal that Turok does. We don't know where he keeps all these
harbingers of destruction, but here's a look at them anyway. 

Knife
Bow and Arrow
45 Magnum
Shotgun
Auto Shotgun
Assault Rifle 
Pulse Cannon 
Chain Gun
Grenade Launcher
Alien Weapon
Quad Rocket Launcher
Shockwave Weapon 
Fusion Cannon
Chronosceptor