After Zed Two was bought out by Warthog, a version was in development for the PlayStation Portable, until Warthog was bought out by Tiger Telematics and development was switched to the Gizmondo, eventually releasing on May 24, 2005.
Zed Two's successor underwent changes when Warthog took over, with a version being worked on for the PlayStation Portable. However, after Warthog's acquisition by Tiger Telematics, development shifted to the Gizmondo, and it was released on May 24, 2005.