Naming your Guest:
To activate a cheat change a guests name to the following:
KATIE BRAYSHAW
Guest waves to everyone
MELANIE
Guest increases park happiness
SIMON FOSTER
Guest draws pictures
JOHN MACE
Guest pays double entrance fee
CHRIS SAWYER
Guest takes photos
DAMON HILL
Guest floors go-karts
MICHAEL SCHUMACHER
Guest floors go-karts
MR BEAN
Guest drives slowly in go-karts
JOHN WARDLEY
Guest always thinks, 'WOW!'