Watch Vanessa Hudgens Scare Unsuspecting Fans at Knott's Scary Farm
10/08/2014 AT 02:15 PM EDT
With her hippie vibe and constant giggle, Vanessa Hudgens is the last star anyone should be afraid of.
But the actress, 25, recently hit up Knott's Berry Farm and gave unsuspecting parkgoers quite the fright while outfitted in a monster mask and costume.
Before she was unleashed on the park, Hudgens got some scare lessons from the ghouls and monsters that haunt Knott's Scary Farm around Halloween time.
"I'm not very scary!" she said, laughing and dubbing her monster alter ego "Scary Mary."
In a video shared exclusively with PEOPLE, the Spring Breakers star takes us behind the scenes as she shocks – in more ways than one – groups of fans.