Ian Woolstencroft’s review published on Letterboxd :
Rather than continue the story in the post apocalyptic vein hinted at in the first films climax (presumably because it would have cost too much) we get a tired rehash of the first film, this time in an apartment building instead of a cinema. It even copies the 'bunch of morons driving around in a car for half the film' bit that was the weakest part of Demons. In fact the only thing new it has to offer is where it draws its inspiration. Demons was in love with Raimi's Evil Dead, Demons 2 (misguidedly) chucks Gremlins/Critters into the mix.
A lazy and pointless sequel.