Atari Vax emails "And to my knowledge, Coin-op has yet to sacrifice quality to get an on-time delivery. Firefox was supposed to start production 1/23/84; millions in parts are all staged ready for production, but it has not started (1/31/84) because the software is not ready".
"Game Machine's Best Hit Games 25 - アップライト, コックピット型TVゲーム機 (Upright/Cockpit Videos)". Game Machine (in Japanese). No. 233. Amusement Press, Inc. 1 April 1984. p. 27.
