Building anticipation for his new Terminator movie, Arnold Schwarzenegger pulled the classic “pretend to be a wax figure and surprise people” stunt at Madame Tussauds this week and filmed the whole day of pranking.

Cameras followed Schwarzenegger as he walked around Hollywood Boulevard dressed as the Terminator and met random passersby. At one point he even came across a man who was impersonating his iconic character. The two Terminators got into an “I’ll be back” duel as onlookers watched in horror/amusement.

At the end of the video we get to enjoy Schwarzenegger’s surprise attacks on unsuspecting tourists in Madame Tussauds — a popular attraction in which people can pose with wax figures of their favorite stars. The looks on the unsuspecting tourists’s faces are priceless as Schwarzenegger surprises one after the next (and scares a little baby!)

Schwarzenegger is using this viral video to promote a new contest in which you can attend the premiere of Terminator: Genisys with the star. All you have to do is donate over at Omaze.com/Terminator to be entered to win. All proceeds from the fundraiser will benefit After-School All-Stars.

Terminator Genisys enters theaters July 1, 2015.