I am not going to waste a large amount of time here. This movie was bad on so many levels that I can only say if you were thinking of renting it, or worse, buying it, your money will also work well as kindling at the next family cookout.
"Gremlins 2" is a completely non-linear sequel to the successful "Gremlins." Although much of the cast is the same, their characters aren't, and they are completely non-dimensional, present only for consistency from the first film. The story is set in New York, inside one of the massive skyscrapers there. Gizmo returns in this film, orphaned by the death of his owner and friend, the elderly chinese man who owned a junk shop in Chinatown, to Billy, his sometime friend from the first film. As with before, he gets wet, births a new batch of Mogwais, and it isn't long before they spawn into Gremlins, releasing havoc on New York.
The movie is filled with a bunch of visual "sthick", which attempts to be funny, but comes across as ridiculous, stupid and very contrived. There are no characters worth caring about or beliving in, and by the end of the movie, when the Gremlins are about to escape, you hope they will, if to devour the production staff that made this piece of garbage.