MultiVersus

Very easy to do, make a custom 1v1 and invite a friend (you can do this with a bot but a friend is faster and better) and pick LeBron or shaggy (as of 8/25/22 Lebron is free to play right now) and for lebron Press to throw your basketball to knock your friend off the map for shaggy + to grab sandwich and then + to knock your friend off and now rinse and repeat until you get the achievement you can also use this method to get 50 and 100 projectile knockouts aswell