A lot of people unfairly sh!t on this series but several of the Guinea Pig videos are fairly entertaining. Devil's Experiment in particular has some really fantastic effects work--not just the infamous eyeball scene but also a very realistic skin slice on the foot and a hand breaking with a sledgehammer are very realistic--especially for the video's vintage and low-budget.
Let me start at the beginning now for those who don't know: This film is an "extreme" torture/fake snuff film that surfaced in Japan in the mid-80s. It's plot as it stands is simple: A young girl is held by a few men and forced to undergo a series of brutal tortures to see where her breaking point is. This entails brutal violence--all effectively realistic effects including the ones mentioned in the last paragraph as well as a painful looking application of hot oil to the captive girl's arm and placing of maggots in the subsequent flaky wound.
The least effective sequences are at the very beginning of the video and consist of an unconvincing slap session where three men take turns slapping the hell out of the girl as her head falls about and a second sequence where the three men take turns kicking the girl and pushing her to the ground. These two scenes are obviously staged and detract from the realism of the rest of the proceedings.
The actress who plays the victim of the "experiment" is pretty convincing at being in pain and takes a good amount of abuse and rough stuff on camera. Her reactions as she has headphones strapped to her head and loud noises are played for hours on end are chilling. Some of the other abuse she takes is being strung up in a net from a tree during the only times she is given a rest. Also there is a disturbing scene where the giggling captors through guts at her and one other disgustingly sleazy scene where she is spun in an office chair and forced to drink a bottle of Jack Daniels till she pukes.
If you haven't seen this series I hope I have helped you decide whether or not you want to give this episode a shot. 8.5/10 for Devil's Experiment.

Will Farmer (Lanter) plays a computer game that simulates a terrorist attack, and Ripley, the super government computer, designed to profile potential terrorists, tracks him because Will borrowed (by hacking) some money from his next door neighbor's bank account to pay for a class trip to play chess in Philadelphia. The next door neighbor whose computer Will was fixing, has relatives in the mid-east who thru their bank send money to the neighbor's bank , and Ripley sees a terrorist connection. Ripley has the power to call up missile strikes. Oh, oh!
This version of War Games has a much faster pace and more aggressiveness than the War Games movie in the early 1980s. Well, the electronic industry has so much more to work with these days. Makes sense. So the movie dazzles us with fantastic CGI on computer screens, and once Joshua, the forerunner to Ripley, is found operational, we are left with watching computer against computer and the humans are cringing, hoping, praying.sort of, oh-oh-ing, OMG-ing, and more cringing hoping things will go their way. In other words we are now experiencing a made-for-TV type movie, and it's Oh Hum Time. Go back to the 1980s and watch the original War Games movie. It's much better.
But, we really have to ask ourselves: are we making computers too intelligent where one day, in time, they will rule us? Hmmm..
Violence: Yes. Sex: No. Nudity: No. Language: No.