Expert Mode- Go to the character select screen and press and hold L + R + Start. You should see the phrase EXPERT in the lower left corner if done correctly. During play no arrow or stop markings will appear.
Push Bike- If you finish all 16 Crazy Box levels you will unlock the Push Bike which can be used on the arcade, original or crazy box modes. To use it pick a character on the character select screen and Hold L + R and press Up or Down.
Easy Taxi Bike- At the character select screen, after you select your character, but before the game starts hit L+R+Start three times quickly. You will now be able to drive a fast taxi bike.
Another Day- When chosing your character hold R and press A. You will see that the words another day will appear at the bottom of the screen. This will give you a different level where the people are in tottaly different places.
NOTE: this code does not work on crazy box.
Turn Off Arrows- Hold Start + R before the character select screen appears. You will see the phrase "No Arrows" appear if done correctly.
Turn Off Destination Indicator- Hold Start + Lbefore the character select screen appears. You will see the phrase "No Destination Mark" appear if done correctly.