Crazy Dinosaurs 
     To  make the dinosaurs in your park go nuts, press L, L, L, then,
LEFT, LEFT, LEFT. Tweak!
 
Easy Money 
     To  get  $10,000  instantly, press DOWN, UP + L, and you'll be in
the money.
 
Unlock Site B 
     To  unlock  Site  B, beat all of the missions in the game. Site B
will be available from the main menu.