After assisting the group, the band's eponymous vocalist makes Ace his blood brother and gives him a whistle to blow during times of trouble.

Wild Zero was shown as part of the Midnight Madness series at the 2000 Toronto International Film Festival.

Some time later, Masao, Hanako and her lover Toshi stop at a gas station while on their way to see the fallen meteorite.

Masao attempts to rob the gas station, but is interrupted by an unwitting Ace, who arrives on a motorcycle.

Ace begins killing zombies with a crowbar, while Tobio finds her way outside and sees an alien spacecraft in the sky.

Ace expresses regret for not having stayed with Tobio, receives a handgun from Yamazaki, and leaves on a motorcycle.

Guitar Wolf stands atop a building, unsheaths his guitar—his fretboard being the handle of a sword—and uses the blade to cut through the mothership.

Ace says he never again went to a Guitar Wolf show, but that he learned "love has no borders, nationalities, or genders", and that he will remain with Tobio.

[5] Variety gave the film a mixed review, stating that "Pic has everything the midnight crowd could possibly want, although such items generally have a hard time hitting other parts of the theatrical clock.

"[1] Jonathan Crow of AllMovie gave the film a score of three-and-a-half stars out of five, writing that its "giddy energy and unrepentantly silly story line are a hoot and a holler of fun.