While at the University of Kansas as a freshman studying political science, Case enjoyed playing "Doom" and "Doom II" with her circle of friends. She became interested in playing "Quake" competitively through her then-boyfriend Tom "Entropy" Kimzey, joining his competitive team, Impulse 9, and competing as KillCreek. According to Case in a live-chat with "Playboy", her in-game name was inspired by the Lawrence, Kansas band of the same name. Impulse 9 competed in the "Quake" competitive league Clanring, and won the T1 competition in 1996.