There, you have a better version than the speccy one.
==Pure lazyness Lazy port ?==
It is to notice that the Disk version actually use multiloads... As as it seems to reload datas data between each levels... So it would seem that the Amstrad version is just some pure applied Lazyness and Scroodgerya lazy, hurried port.
Such a shame for what used to be one of the best Arcade Game of 1987.