The Hit Squad release of this game for the Atari ST came with a sealed envelope containing game cheat codes "For emergency use only".
The TRS-80 CoCo version was one of only two cartridges that Radio Shack/Tandy put out which used a ROM >32KB (the normal
technical maximum for a CoCo 3 cartridge). Greg
Zumwalt designed "super cartridge" hardware that included a built in MMU
(Memory Management Unit) to break this barrier, and used 128KB of ROM with
The other game using this hardware was Predator, with 64KB of ROM. In an article explaining the hardware in Rainbow magazine (TRS-80 CoCo's largest and longest running dedicated magazine), Zumwalt explained that he had prototyped a second version of the super cartridge that could handle up to a 512KB ROM, but no games were ever released using this hardware (probably due to costs and the CoCo nearing the end of its life at Radio Shack).