How it went?
I believe that I watched this film in the early 80's with my mother. Did the film end ( and this is a spoiler alert ) with the authorities deciding to blow up the creature only for it to morph into about 100 other deadly monsters?
share***SPOILER***
...Yes, that is how the movie ended. The offspring of the original creature started making sand holes during the running of the end credits, and it is inferred a little kid gets sucked down into the sand at the very end.
"Mi casa es su casa- my house is your house."