Z/X , also known as Z/X Zillions of enemy X, is a collectible card game produced by Nippon Ichi Software and Broccoli. It is marketed as the first "free" collectible card game, with a free deck offered to players at card shops and events in Japan. A PlayStation 3 game titled Z/X Zillions of enemy X: Zekkai no Crusade, developed by Nippon Ichi Software and produced by Broccoli was released in Japan on May 23, 2013. A manga adaptation written by Broccoli with art by Karegashi Tsuchiya began serialization in Shueisha's V Jump from September 2012. A 12-episode anime television series adaptation titled Z/X Ignition aired between January 9, 2014 and March 27, 2014.

V Jump is a Japanese shōnen manga magazine, focusing on new manga as well as video games based on popular manga. The magazine's debut was in 1990 by Shueisha under the Jump line of magazines.