I searched the Zzap! bible for Catalypse. Nothing.
After some digging, I tried searching for Calalypse. Something is found, and points to Catalypse review in issue 84...
In issue 84's table of contents, too, the spelling was Calalypse. This reminds the old Bibles printed on Zzap! If a game review was missing from the table of content but present in the mag, for some reasons it was missing from the Zzap! Bible. Luckily Iain's Bible corrects this.
(P.S. the game is not as bad as the review says...)
Commodore Format gave it a Corker at over 90%.
ZZAP! panned it completely.
The one thing that really strikes me when playing it is just how similar to Armalyte it is - not just the look and gameplay, but whole sections of the game seem very similiar...