To enable these codes, first activate Easter Egg mode as shown under "Cheat Codes". During the game enter cheats using the following format:

[-] cheat [-]

Where [-] is the keypad minus key and "cheat" is a string from the list below.

Effect                Code
Backward view         bucketofchicken
Disable Cheat mode    bing
Enable Cheat mode     bod
Extra credits         babapapa
Extra lives           crystaltips
God mode              zippy
Grenade boost         albertofrog
Level skip            mrbenn

To activate cheat modes, load the game with the command:

go.exe [-]cheat

Where [-] is the keypad minus key and "cheat" is a string from the list below.

Effect            Code
Easter Egg mode   whostayedlateagain
Hodspokins mode   mumford
Rockhard mode     whostayedlate