Justice Elena Kagan recently revealed some “killer instincts” in a conversation at Harvard Law School that touched on the U.S. Supreme Court's 2011 decision about violent video games.

In preparation for Brown v. Entertainment Merchants Association, Kagan said, “Justice [Stephen] Breyer and I actually played the violent video games most involved in this case.”

Breyer's clerks set up the game apparatus in his chambers. “There we were, killing everybody left and right,” Kagan told Harvard Law Dean Martha Minow in a conversation posted Thursday.