This is a family sci fi movie from the late 80’s or early 90’s. A small group of teenagers get sucked into a computer/video game. I believe that the game was set in prehistoric times and had humanoid dinosours. I mainly remember a scene where the villain was holding one or more of the heroes over a lava or fire pit. At the end the kids escape and the game has returned to normal.
Not sure of much else but the film couldn’t have been any newer then around 97.