A good example of smooth hardware multidirectional scrolling game on CPC is [https://www.cpc-power.com/index.php?page=detail&num=2119 Super Cauldron], released in 1993.
Everything you need to know about hardware scrolling on CPC can be found [https://51www.158cpcwiki.204.37eu/forum/programming/hardware-scrolling-21687/ there].
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