Natural Fawn Killers Cheats (PC)

Open The Game Root Usually: C:Program
  FilesSmall RocketsNFK - Natural Fawn Killers
  
Go To The Directory Levels

  In That Directory You Will Find The Levels And They Are Sorted As
  Follows:
  
Level 1 CORPSES (First Level).

  Level 2 RESERVR

  Level 3 WABBIT

  Level 4 BEARNESS

  Level 5 ONEDEER

  Level 6 MIDNIGHT

  Level 7 BREEDING

  Level 8 HEARTBLD

  Level 9 BUBBA

  Level 10 SPRING

  Level 11 LASTWRLD (Last Level The T-Rex)
  
Now go to any level you wish to modify and open
  the file info.txt. If you wish to increase the Level Time, just
  increase the number next to time.
  
When you are finished modifying the level just
  save it and play.
  

How to find a T-reX in the last world

  go to the river in the center and shoot on the water. then you wil
  hear a roar me and my friend thought it was a bear but it was a T-reX!!!