[2] Arnold also makes video art works, including performances for camera, and short playful pieces that resemble skits, pranks or TV advertisements.

Representative video works include Punch (1984), a video-sculpture that shows a 15-second loop of Arnold being punched hard in the gut and falling through the frames of two stacked monitors; the Activities Made for TV series (1983-1992) that involve him undertaking simple actions such as barking at a concealed dog in Antagination (1976), rolling his head along Saint Patrick's Wall in Roll (1986), or eating an olive in an X-ray machine in Skip Eats an Olive (1984); and the more recent Whipping series (2017), in which Arnold spins in circles with outstretched arms, and has edited the video such that his body resembles a ceiling fan.

Other works involved Arnold undertaking durational tasks in public, such as navigating the Bermuda Triangle in B. T. Exploration (1996), funded by a prestigious Guggenheim Fellowship; being installed underneath a sheet of glass at the entrance to the Basel Art Fair such that visitors had to walk over him to enter the event (Gruezi, 2002); being installed wrapped in plastic in a public square in Slovakia (An Occurrence at Nove Zámky, 2002); or taking eight-hour showers daily for four days in a hotel room during the Gramercy International Art Fair (Shower, 1997).

Arnold also engages in long-term project-based works, for example Truffle Hunt (1998), a collaboration with artists Jason Rhoades and Hans Weigand.

), and involved Arnold, Rhoades, and Weigand journeying to Italy via Switzerland in search of truffles; in its exhibited form at ICALA in 2018 (January 28-April 8), it included maps of their journey to different locations in the countryside, Polaroids, video clips, and related ephemera, as well as one of the truffles smuggled back to Los Angeles by the artists, installed on a turntable.