At the character selection screen, hold L + C-Up + C-Down + C-Left + C-Right and start a new game. Then, press Up or Down to select a country or Left and Right to select a city at the "Peoria Day 1" screen. Note: Entry of this code is particularly timing sensitive.
Wait until the current level is over and Cleveland, Fargo, Oklahoma City or Reno appears on the screen. Then before the city name disappears, press Jump, Punch, Kick if playing as George; press Punch, Kick, Jump if playing as Lizzy; or press Kick, Jump, Punch if playing as Ralph. Now your character will jump seven to ten days forward in the game.
Beat all levels, then start a new game. Then on the character selection screen, highlight Lizzy. Now hold Z and tap L, R repeatedly. If you entered the code correctly, you will hear a scream.
At a Scum Lab facility, eat the toxic waste canisters to play as V.E.R.N. until the current level ends.
Wait until the current level is over and the name of a city in the United States appears on the screen. Then before the city name disappears, hold Down and press Jump(3) if playing as George; Punch(3) if playing as Lizzy; or Kick(3) if playing as Ralph. Now all bad food in the city will turn into good food.
Wait until the current level is over and Casablanca, Kiev, Kodiak, London, Moab, Nashville, Rio de Janeiro or Washington D.C. appears on the screen. Then before the city name disappears, press Jump if playing as George; Punch if playing as Lizzy; or Kick if playing as Ralph. Now all the bad food in the city will disappear.
At the character selection screen, highlight George, Ralph, or Lizzy. Then after selecting a character, press Up to choose a new color.
When the screen that indicates the next city appears, rapidly tap the indicated button for the character currently in use. Then, an alternate city will appear for game play. Pressing buttons for the remaining cities gives you only good food. For example: When playing as Lizzy in London, press Punch, Punch, Punch. Then the phrase "Secret code accepted" will appear. Now every window with items will only contain good food.
| Character | Button |
| George | Jump |
| Lizzie | Punch |
| Ralph | Kick |
| City | Alternate city |
| Atlanta | Suburbia |
| Casablanca | Palace |
| Fairbanks | Underworld |
| Kiev | Exange |
| Kodiak | Snow City |
| London | Big Ben |
| Louisville | Scumlabs Biowepons |
| Moab | Game Refuge |
| Nashville | Downtown |
| Phoenix | Area 69 |
| Rio de Janerio | Sunset City |
| San Diego | Caleb's City |
| Washington D.C. | The Capital |
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Game Shark Codes
Lose Power Faster
859B726A 9955
George Codes
Infinite Health
800BF86D 0064
Press GS Button For 50% Lifebar
880BF86C 0032
No Health
800BF86B 0000
Infinite Lives
800BF86B 0064
Invincibility
810BF956 0239
Super Strength
810BF958 0181
810BF9A0 0000
Have 9999900 Points
800BF88C 0064
Always be V.E.R.N.
800BF9A4 0001
Lizzie Codes
Infinite Health
800BFA39 0064
Press GS Button For 50% Lifebar
880BFA38 0032
No Health
800BFA39 0000
Infinite Lives
800BFA37 0064
Invincibility
810BFB22 0239
Super Strength
810BFB24 0181
810BFB6C 0000
Have 9999900 Points
800BFA58 0064
Always be V.E.R.N.
800BFB70 0001
Ralph Codes
Infinite Health
800BFC05 0064
Press GS Button For 50% Lifebar
880BFC04 0032
No Health
800BFC05 0000
Infinite Lives
800BFC03 0064
Invincibility
810BFCEE 0239
Super Strength
810BFCF0 0181
810BFD38 0000
Have 9999900 Points
800BFC24 0064
Always be V.E.R.N.
800BFD3C 0001
