This is the famous "10th level of hell" deleted scene shown in the trailer. This scene would have happened just after the Ghostbusters think of using Libby has a symbol by looking at ECTO-1A plate. In the background, the Mayor car can be seen. The scene has been cut and the "10th Level of hell" line has been moved in the Lenny office scene.
The jewelry scene, another shot not seen. One of the stangest scene in GB2. I finally understood it after 20 wahtches. In the movie you can see Peter in black glasses giving the ok.
The Scoleri rage: Here you can see the bad lawyer flying with no Scoleri holding her. The problem is that the shot seems to be completed, no machinery used to lift her is seen and the shot's clear but laters the Scoleri has been added. Probably they decided to add it later.and redid the SFX. How they did it the first time?