Iridion 3D was a launch title for the GBA. It was developed by Shin'en Multimedia and published by Majesco. It spawned a sequel, Iridion II and two spiritual successors in the form of Nanostray and Nanostray 2.
Iridion II is the sequel to Iridion 3D. Like the first game it was released for the GBA and developed by Shin'en Multimedia. It was published by Majesco and Vivendi Games.