Unlock "The Car Built for Homer"
To Unlock the Car Built for Homer, beat all the 10 'Road Rage' levels.
New Camera Views
To get more camera views, go to the Options screen, press and hold R & L, then enter the following code: B, B, B, B.
Unlock Nuclear Bus
To unlock the Nuclear Bus, go to the Options screen, press and hold R & L, then enter the following code: B, B, Y, A.
Unlock Smithers
To unlock Smithers, go to the Options screen, press and hold R & L, then enter the following code: B, B, Y, Y.
Unlock Soapbox Car
To unlock the Soapbox Car, go to the Options screen, press and hold R & L, then enter the following code: B, B, Y, X.
Unlock expert mode
To unlock the special Expert Mode, press and hold L and R, then press START before you see the character selection screen. "Expert" will appear onscreen if done properly.
Mission skip
Intentionally fail a mission five times to have the option to skip the mission. Note: This cannot be done on the final mission.
Show collision lines
At the options menu, hold L + R and press B(2), A(2). If you entered the code correctly, you will hear a sound.
Flat characters
At the options menu, hold L + R and press X(4) at the options menu. If you entered the code correctly, you will hear a sound. All the people (except the character you selected) will be flat.
Extra time
To get +2 seconds, hit the phone booths that have Mr. Burns' picture on them. You can get +2 seconds in the road rage levels by running over the Transit bus stops.
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