It seems there is an unlicensed Lemmings 2 game for ZX Spectrum. It doesn't have any of the new skills of the oficial sequel; only the good old eight ones with 25 new levels:
Sources
Rom:
https://worldofspectrum.net/item/0036959/ (https://worldofspectrum.net/item/0036959/)
Maps:
https://maps.speccy.cz/map.php?id=Lemmings2&sort=0&part=0&ath=0 (https://maps.speccy.cz/map.php?id=Lemmings2&sort=0&part=0&ath=0)