Level Skip
 
Go tho the password screen and enter the password FLYTO 
followed by a number from 1-34. (for example to start at the 
final stage type "FLYTO34"). 

Highlight "Accept" and press A; you will see the words 
"CHEATS ACTIVATED" on the screen. Now quit to the Title 
Screen and choose the "Press Start Button" option to start 
at the level you choose. If you enter the password "FLYTO35" 
you'll se the video sequence from the end of the game. 

Cheat Codes 
Do the same prosedure with the following codes to get 
different results. 

All the games wepons in you inventory
F1SH1NGF0RGVNS 

Infinite ammo

F1LLMYP0CK1TS