The Gate II: Trespassers

Gate II Trespassers, aka Gate II and Gate II Return to the Nightmare, is a 1990 CanadianAmerican sequel to the 1987 film The Gate. It was directed by Tibor Takcs, with Louis Tripp returning as Terrence Terry Chandler.

Liz burns an effigy of her car pin to make a real one, and John and Moe create money and go pig out at a fancy restaurant after stealing the minion and trashing Terrences house. The minion gets loose and attacks the boys, infecting them.John and Moe are transformed into demons. They kidnap Liz to sacrifice her. Previously Liz and Terrence imbued an old jewelry box belonging to his mother as a vessel of light to destroy the darkness. ........

Source: Wikipedia