As they play, they are joined by Alan Parrish (Robin Williams), a man who has been trapped inside the game for 26 years. The trio embarks on a perilous journey, navigating the treacherous world of Jumanji, complete with monsoons, wild animals, and treacherous terrain.

As for Ok Ru, it seems to be a Russian online platform. Unfortunately, I couldn't find any information on whether "Jumanji" (1995) is currently available to stream or download on Ok Ru. However, the movie is widely available on various platforms, including Amazon Prime Video, Google Play, iTunes, and DVD/Blu-ray.

The cast delivers impressive performances, with Robin Williams being the standout. His portrayal of Alan Parrish is both captivating and heartwarming, bringing depth and nuance to the character. The chemistry between Williams and the child actors, Kirsten Dunst and Bradley Pierce, is undeniable, making their on-screen interactions a joy to watch.