Well, I expect the game was initially coded for 320x200 NTSC displays and ported directly to PAL without any alterations to the code.
The screenshots on HOL would confirm this:
http://hol.abime.net/469/screenshotIncidentally, there is an excellent interview with programmer Bob Dinnerman linked from the HOL page.
Great game - I spent many hours playing this with my father during the Christmas holidays of 1988...our first A500 - ah, those were the days!
Cheers,
James
x
