As graduation approaches for high school seniors, some hijinks are prompting Sudbury police to issue a warning about a popular game involving water guns.

The ‘Senior Assassin’ game -- also known as Senior Splash or Splashin -- has been around for a few years and involves players eliminating each other by hitting each other with water in different ways.
“This challenge is all about having fun, staying active and enjoying some friendly competition with your fellow grads using water guns or water balloons,” Sudbury Police said on social media Monday.
“But let’s keep it safe, smart and stress-free for everyone.”
The use of water guns in the game has prompted police to warn players to ensure their toys don’t look like real guns.
“If a water gun looks too realistic, it can lead to real emergency calls to 911 and trigger a serious police response,” police said.
“Criminal charges could apply in those situations, so let’s avoid that entirely.”
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One person weighed in on the post saying someone called the cops on him and his friends having a Nerf war.
“Even if it doesn’t look like a toy gun (you) still get the cops called,” Ethan Gladu said in a comment.
“Legit bright yellow, blue and orange Nerf guns and still had four cops show up on us just because some idiot thought they were real. Cops were chill, but whoever called the cops needs glasses or something.”
Another woman said someone in her town called the police on some kids playing.
“The students had weapons drawn on them. It was awful,” Kelly Friis said in a comment.
“Be safe out there kids get bright orange/pink/green super soakers.”
Players are also encouraged to respect each other and the community and stick to the rules if using the ‘Splashin’ app created for the game.
Several people applauded the police support.
“The kids are loving this challenge,” Mandy Barr Flores said on the police post.
“It’s so nice to see our kids being kids again. Happy to see that GSPS is encouraging them to continue with the challenge while keeping it safe and enjoyable for all. Way to go GSPS!”
“Thank you for encouraging the graduates to have fun, be active and enjoy it! And to also do it safely,” Lindsey Dumont said in a comment.
While the name of the school or schools taking part in the challenge has not been released, Nicole Charette of the Rainbow District School Board told CTV News the game is not a school-sanctioned, supported or endorsed event.