Comparison between the shortened UK VHS released by Futuristic Entertainment (BBFC 18) and the uncut German VHS released by Screen Power.

There are 2 minutes and 15,75 seconds missing in 5 scenes.

Anchor Bay released a box set in the USA as well as in the UK that includes the first 3 movies and the uncut version of part 2.

4 min
You don't see Angela reaching for Phoebe's tongue. She puts the knife on the tongue and says that this is what awaits malicious tongues who want to tell dirty stories. Then she cuts the tongue off while saying that this happens to anyone who doesn't comply with the camp's rules. She puts the severed tongue on Phoebe's shoulder and then leaves the screen.
17.5 sec

4 min
The title is different for both versions.

German Version: Sleepaway Camp 2 - Unhappy Campers
UK Version: Nightmare Vacation II.
No difference in time.

45 min
The knife is pulled out of Ally's back.
0.25 sec

45 min
The next stab was cut out.
0.5 sec

45 min
Ally's death was cut out. Angela grabs Ally, throws her against the toilet's door and then jails her inside the toilet. Then, Angela gets a stick and goes to Ally inside the toilet. Now, she grabs Ally and - after a short dialogue - completely dips her inside the catch tank. When Ally repeatedly tries to come back up, Angela pushes her back down with her stick. When Ally drowns inside the faeces, Angela goes back out of the toilet.
117 sec

70 min
Angela turns the knife around in Diane's stomach (close-up shot).
1 sec