Fortnite might just be the most popular game in the Western world these days, and it appears close to seizing a Minecraft-like status as a bonafide cultural phenomenon. That popularity has only intensified with the release of the mobile version of Battle Royale, and it’s started a new battle between kids and teachers over Playing the game in class.

Here's everything you need to know about Fortnite Mobile.

Now Fortnite Mobile has a loading screen message that reads “Mr. Hillman says stop playing in class.” That’s a nice enough PSA from Epic, but Mr. Hillman also happens to be a real-life teacher who took to the game’s subreddit to ask the developers for help.