Puppet Master 4(1993)
A young scientist working on an artificial intelligence project is the target of strange gremlin-like creatures, who are out to kill him and thus terminate his research. By coincidence, in one of the rooms he uses, there's a mysterious case containing the puppets of the "puppet master". When the puppets are brought to life, they help destroy the creatures.
This is the video trailer for the movie, clipped at the end.