
"Saving the day the ninja way!"
Three young boys, Rocky, Colt and Tum Tum together with their neighbor girl, computer whiz Amanda are visiting Mega Mountain amusement park when it is invaded by an army of ninjas led by evil Medusa, who wants to take over the park and hold the owners for ransom. Kids and retired TV star Dave Dragon, who made his farewell appearance at the park at the time the ninjas appeared, have to break Medusa's vicious plans.
Mori Tanaka "el abuelo

Samuel Douglas Jr. "Rocky"

Dave Dragon

Medusa

Lothar Zogg

Colt
TumTum
Sam

Jessica

Amanda
Jennifer

Veronica
Doyle
Eric
Carl

Zed

C.J.
Harry Jacobson
Klaus
King
Beverley
Gomez
'B' Ninja Leader
Control Room Ninja
Smithers
Blonde Woman
Harry's Butler
Helicopter Pilot
Mr. Hartman
FBI Tech Andrews
Detective Young
Susan Blenkenship
Dave Dragon Stunt Double
Little Girl

Young boy
Master Blaster Ride Attendant
Shoot and Squirt Attendant
Lost and Found Attendant
Park Entrance Attendant
Softball Attendant
Teen #1
Loop Kid #1
New Yorker
Computer (voice)
Lars
Stunt Cowboy #1

Stunt Cowboy #2
Stunt Cowboy #3
(uncredited)
Medusa's Thug (uncredited)
Little Willy (uncredited)
Buelow
Lost man (uncredited)
