If the threat involves deadly force, the person defending themselves can use deadly force to counteract the threat. If, however, the threat involves only minor force and the person claiming self-defense uses force that could cause grievous bodily harm or death, the claim of self-defense will fail.
The Gizmo puppet used in the first film was not used in the second film, however the much cuter Gizmo puppet used in Gremlins 2: The New Batch was featured on the DVD cover of Gremlins. In the first film Gizmo spawned five mogwais, however in the second film he spawned only four (It may be due the quantity of water)
Gizmo then joined forces with Billy and his girlfriend Kate to defeat the gremlins. Kate and Billy were able to blow up the movie theater in which the gremlins were hiding, although one had escaped, and of course, it was Stripe.