January 20, 2015 11:15 AM EST

YouTube prankster Roman Atwood surprised his girlfriend Brittney Smith by turning their house into a giant ball pit.

With help from their kids, he covered the living room floor with balls, as well as the family’s indoor trampoline. Atwood set up the prank so when Smith opened the door to the house from the basement or garage area, tons of plastic balls spilled out — prompting the response, “Are you kidding me?!”

The video has racked up more than 8 million views since it was uploaded on Jan. 18.

No word on how clean-up is going.

WATCH: None of Us Will Ever Know Joy Like This Pug Playing in a Ball Pit

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Write to Olivia B. Waxman at olivia.waxman@time.com.

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