Compared are the shortened UK VHS (Vestron Video / BBFC 18) and the uncut UK DVD (Lionsgate / BBFC 18).

Total difference: 14.5 seconds in 6 scenes.

In UK, only a slightly shortened version of the "Class of 1984" sequel was released on VHS. The later DVD releases are uncut.

41 Min
Cody gets the knife to open the window.
4 sec

55 Min
Bryles breaks a rebel's neck.
2 sec

55 Min
Shortly afterwards, Connor breaks another guy's neck.
0.5 sec

75 Min
Shot of Hardin's driller boring into the guy's forehead.
1.5 sec

85 Min
When Cody is driving in circles with the stacker to wrap the chain around Bryle's neck, he also screams Yeah.
2.5 sec

85 Min
The VHS Version also lacks his comment Have a nice stretch Coach!.
4 sec