Marty Friedman, the guitarist of Megadeath, also featured her second Japanese album. The book helped popularize the term megadeath, which Kahn coined in 1953. He then reaches the control room, and battles Lord Megadeath. Megadeath (or megacorpse) is one million human deaths, usually caused by a nuclear explosion. He and the others faced Megadeath once again in the present and defeated him. Junior then travels to a military satellite, Gunslinger, to challenge Lord Megadeath.