Although this game has "Micro User" visible in the graphics, I can find no evidence it was published by them.
It appears the game had new graphics and was released as "Jet Set Santa" on the 1986 "Christmas Crackers" compilation.
|Publisher||Micro User, The (later Acorn Computing) (Database Publications)|
|Release Type||Unreleased Game|
|Primary genre||Space Shooter (Gallery)|
|Secondary genre||Jet Pac|
|Compatibility||A:✘ B:✔ Master: Untested|