In 1988, Theorysonic created an handheld console to compete with the Game Boy and Nitrome Handtrome called "Blue King". Game Boy was released a year later by Nintendo.
|V • T • E Theorysonic|
| Operating Systems:|
Consoles: Tournament (200 | 400 | 650 | 875 | 1100) | Theorysonic Hyper-System | Theorysonic Codear (Theorysonic CD) | Theorysonic 3DO | VR Buddy | Theorysonic Sphere Box | Theorysonic Chaos | Theorysonic Pyramid | Theorysonic Swift