The problem? Limited ammo. Picking up a gun typically gives you 6 to 30 bullets. Once they’re gone, you’re back to fisticuffs. In later levels, particularly the mine cart stage and the final fight against the giant mutant alligator "Gorth," running out of lead means certain death.
To achieve an in Cadillacs and Dinosaurs
Some advanced cheat files allow you to force the game to give you a specific weapon (like the M16 or Shotgun) at all times.
While everyone wants unlimited guns, be careful where you download your files. "Hot" search terms often attract viruses.