This is one of two known Blaster prototypes for the Atari 8-Bit
computers. The only difference between the two is the
company credited on the title screen. This prototype (which
was compiled from code rather than dumped from a physical
prototype) has an Atari copyright similar to the 5200 prototype
while the other version has a Williams Electronics
copyright. It is assumed that had this been released Atari
would have used this version.