Very, very different from the other Guinea Pig movies. It is definitely more like what you would usually expect from Hideshi Hino (who despite not being listed here on Listal had a hand in directing).
It's so clichéd to say that something is WACKY JAPAN but it was pretty messed up. It starts off fairly smoothly but by the time his buddy shows up at his apartment it just loses all control.
It's worth the watch if you are into this kind of thing, but it's definitely not for everyone.
...and in case you haven't figured it out, the Eve listed as an actor here isn't the same Eve that is in the movie.