Mission-X © 1982 Data East.
Runs on the "DECO Cassette System" hardware
Model DT-121
Mission-X was released in March 1982. It was known as the 21st video game made for this system (Cassette No. 21).
The game was also available as a conventional stand-alone PCB.
CONSOLES:
Mattel Intellivision (1982) "Mission X [Model 4437]"
Game's ROM.