To change the colors of George, Lizzie or Ralph go to the characters select and press UP or DOWN on the controller stick or the d-pad.

You can double the points you get in certain cities if you press the character button on the screen that introduces the next city. The buttons are:

George  Jump
Lizzie  Punch
Ralph   Kick

These are the cities that are affected by this.

Casablanca
Kiev
Kodiac
London
Moab
Nashville
Rio de Janerio
Washington DC

You also get these affects if you pick up a calculator in any city.

Jump on tanks to get a free ride. You can control the way the tank is moving. The tank will then shoot elsewhere. In a short while, the tank will explode and you will be shot into the air. You can also jump onto the low flying planes and use them to attack the buildings and other players.

At the character selection screen hold L and all four C- buttons. Keep holding them until you hear a noise, then start the game. When the screen that shows the next city is displayed, use UP and DOWN to change your country or LEFT and RIGHT to change your city. Even the bonus levels are included.

To play as V.E.R.N. (Violent Enraged Radioactive Nemisis) search for a Scum Lab facility. Eat the toxic waste barrels and you will be transformed into V.E.R.N. for the rest of the stage. V.E.R.N can fly, throws fireballs and has super strength.

To access the hidden stages below, at the city screen, rapidly press the button indicated for the character you're playing: Punch for Lizzie, Kick for Ralph, and Jump for George.  If you pressed the button quickly enough, you'll warp to the following stages.

• Atlanta - Suburbia
• Casablanca - Palace
• Fairbanks - Underworld
• Kiev - Exchange
• Kodiak - Snow City
• London - Big Ben
• Louisville - Scumlabs Bioweapons
• Moab - Game Refuge
• Nashville - Downtown
• Phoenix - Area 69
• Rio de Janeiro - Sunset City
• San Diego - Caleb's City
• Washington D.C. - The Capitol

If you find a rubber ducky, don't eat it. Doing so will call the fighter planes early.

When a World Tour is over and the name of an American city appears on screen, hold the joystick Down, then for George press Jump 3 times. For Lizzy press Punch 3 times. For Ralph press Kick 3 times. This will change all bad food to good food during the next stage.

Beat all the levels, then start a new game. Highlight Ralph on the character select screen, hold Z and press L, R, L, R. If you hear people scream, the code was entered correctly.