Small people:
Successfully complete challenge mode under the easy difficulty setting to unlock
a bonus option to make the people smaller.
Faster game:
Successfully complete challenge mode under the medium difficulty setting to
unlock a bonus option for more speed.
Tyrannosaurus Rex:
Use the Elephant to successfully complete challenge mode under the hard
difficulty setting to unlock a bonus option for more speed.
Expert difficulty setting:
Successfully complete challenge mode under the hard difficulty setting to unlock
another difficulty level.
Alternate character appearance:
Hold L1 or R1 and select a character.
Quick start:
Press X (with the default controller setting) when the word "Go" is spoken when
your character is at the starting line. If timed correctly, your start will be
faster than normal.
