Time Out says
A British horror picture incompetent enough to be prime drive-in fodder, if only we had such a thing, this throws together in random fashion a mish-mash of all the half-remembered elements from recent hungry alien films. Telekinesis, melting telephones, randy au pair girls getting sliced in the shower, pumas in the living-room, and - nastiest scene of the month - a woman giving birth to a fully-grown man, who then bites off his own placenta. The Xtro creature is a warty lizard which snatches family men off to its space craft for three years at a stretch; but its greatest service to mankind seems to be a taste for eating the drivers of Volvo estate cars, which is very heartening. CPea.