By no means do I judge a movie on it's sfx, I wouldn't be a fan of 80's horror if I did!
It's just hard to believe that this was made back-to-back with the far superior Demons. What happened to the gore?! Did they blow all the sfx budget on that 'Button Moon' puppet?
And the guy outside the flats should get his own movie, perhaps entitled
'Man Waiting Outside Towerblock'. Followed by a sequel ;
'Man Wanders Up & Down Pavement, Occasionally Checking Watch'. Hell, let's make it a trilogy ;
'Man Waiting Outside Towerblock For Guy To Arrive To Tell HIm He Can't Come In, Only For Guy To Finally Arrive & Immediately Get's Involved In A Minor Car Collision Which Has No Relevance To The Demonic Attacks Taking Place Inside The Towerblock'.
But joking aside, this is just one guy's opinion. And I'm a huge fan of Castellari's 'Last Jaws', so my opinion is probably entirely irrelevant!