Turok: Dinosaur Hunter (N64)

Dead Man Hunting
Turn on the Fly cheat and hold in R. The screen will go black.

Do not worry the screen will come back. But you'll notice you have no lives.If you turn off the flying cheat you'll die. So don't turn it off.

No enemies will notice you when you go back to the ground. Another thing you will notice is that there is no music. You won't have any weapons. You will be a zombie.

Fly Mode
To activate Fly Mode key LKMBRD into the password screen. Use L and R to go higher and lower.

All Weapons
Enter CMGTSMMGGTS as a password to activate the all weapons cheat.

Infinite Lives: FRTHSTHTTRLSCK
All Weapons: CMGTSMMGGTS
Unlimited Ammo: BLLTSRRFRND
Invincibility: THSSLKSCL
Show Credits: FDTHMGS
Enemies (execpt bosses) won't shoot back: SNFFRR
Pin and Ink (turn graphics into black and white line drawings): DLKTDR
Gallery (see all the enemies execpt for bosses): THBST
Show Credits: FDTHMGS
Be invincible without "spirit" affect: RBNSMTH
Shows enemies on the map screen: NSTHMNDNT
Rainbow colors code: LLTHCLRSFTHRNB
Big head with tiny body: RBNSMTHDNCHN
Fly mode: LKMBRD

Get just about all the cheats available:
NTHGTHDGDCRTDTRK


Cut down trees:
If you shoot some of the tree's they have blue sparks come out of them.
If they do, take some kind of explosive gun and shoot the tree, it will probably
fall over (to get the blue sparks I recomend you use the pistol or the assult rifle)