When winter rolls around, snowball fights are supposed to be fun and games. But when your little brother turns the battlefield into a high-tech snowstorm, you don’t back down—you fight back! That’s exactly what YouTuber Handy Geng did by building a Lucky Cat Snowball Mech to teach him a lesson in “snowball justice.”

This cute robot might look like it’s ready for a nap, but don’t let the adorable exterior fool you. It’s armed with 90mm ducted fan motors in both arms, capable of shooting snowballs at enemies with serious power. And the best part? The mech is built like a tank. Snowballs? No problem. You’ll need more than that to take this machine down.

Inside the mech, Geng’s created a snowball-making factory that collects fresh snow, turns it into perfect snowballs, and loads them into a conveyor belt for maximum snowball-flinging efficiency. Check it out in action below!