The Buster Wolf freeze glitch was a glitch in Super Smash Bros. Ultimate that was discovered in the version 6.0.0 update which causes both Terry and the partner Ice Climber to become frozen in place. This glitch can be performed by connecting Terry's Buster Wolf with the partner Climber's Squall Hammer. Naturally, this glitch was easier to perform while the Ice Climbers desynching. Should the conditions occur correctly, both Terry and the Ice Climber will be unable to move while intangible, unless ending the match by quitting, or by the main Ice Climber self-destructing.
This glitch has been patched out in 6.1.0.