"Gamma Knife" is a fast-paced rock song described by Uncut as having "hard-charging guitars, liberal use of effects pedals and a thrillingly frantic finale.

Consequence named it one of the band's best, saying "It's a major reason for why many fans consider Nonagon Infinity to be King Gizzard's best record.

With its feisty momentum, trippy timbres, and raucous yet welcoming vocals, Gamma Knife strikes a fine balance between catchy accessibility and uninhibited trickiness.

The multilayered multicultural breakdown near the end is downright hypnotic, too, bolstering the track as a classic not only for the band but for psychedelic garage rock as a whole."

[8] King Gizzard & the Lizard Wizard "Gamma Knife" has appeared in television shows such as Marvel's Runaways, The Rookie: Feds, and My Dad the Bounty Hunter.