Gutterballs is a 2008 Canadian horror comedy film written and directed by Ryan Nicholson.

Lisa breaks up the fight by dropping a bowling ball on Steve's foot.

Steve returns with a bowling pin and prepares to insert it into Lisa before Patrick intervenes.

The unknown killer exits one of the stalls while Dave and Julia are in the 69 position and suffocates them both.

Egerton then sends him to put a sign on a ball waxer that Joey broke earlier.

Lisa asks Egerton why he killed all her friends, to which he explains they hadn't helped, despite them not knowing.

A furious Lisa berates Egerton for letting him live, to which he slits his throat with Sam's switchblade.

Jamie, realizing his insanity, wrestles Egerton and, after a scuffle, blows his head off.

With every "BBK" (Bowling Bag Killer) gone, Sarah shoots the chains off the exit-doors so the two can escape.

The Balls-Out Uncut Edition was released by Plotdigger Films on DVD on April 29, 2008.

The Pin-Etration Edition, a cut containing hardcore inserts and limited to 69 copies, was available for purchase on the Plotdigger Films website in 2011.

[4] Johnny Butane of Dread Central said that while the music was fitting and the gore was impressive, the film suffered from atrociously bad acting, and "hits all the wrong notes, even if it's [sic] intentions are in the right place".

[5] In a review for DVD Verdict, Gordon Sullivan praised the gore, the atmosphere, and the performance of Dan Ellis, and despite finding various faults with the film (such as the prolonged rape scene, actions of the killers, and discomforting nudity) still recommended it, finding that it "delivers on everything it promises: old-school slasher thrills loaded with gore and nudity set in a kitschy '80s bowling alley".

[6] Gutterballs was described as "one of the weirdest movies I've seen" by Kurt Dahlke of DVD Talk, who gave it a two and a half out of a possible five, and concluded that it was "a damn fine sexually explicit, graphically violent, morally repugnant, willfully bad B movie" that refreshingly took itself seriously, despite the over-the-top subject matter.

[7] A sequel, subtitled Balls Deep, premiered in 2015, written and directed by Ryan Nicholson.

The film stars Aidan Dee, Momona Komagata and Kirsty Elizabeth in the leading roles.