The Goonies 2 is a bit of an oddball, existing as a video game only sequel to a movie. In this sense it had some advantage over other licensed titles in that it wasn't racing to hit a looming deadline to coincide with any other release.
The story roughly follows on from the movie, where the Fratelli family are on the loose again and have kidnapped all of Mikey's friends. As the last remaining Goonie, it's up to Mikey to save them. Yeah, with that as the backstory and little in the way of story exposition it's safe to say that plot isn't a strong suit here.
The graphics are pretty decent for a NES game. Well, some of the characters look a little odd. Mikey's colour scheme is made up of blue and pink for some reason and they could have probably put in a little more detail in them, but they do move around and act pretty well. The level design is a lot more interesting, covering a variety of different types of areas and having some pretty detailed backgrounds as you explore.