The Z-Axis Glitch was a glitch in Super Smash Bros. Ultimate that was discovered in patch 3.0.0, allowing every character to face the Z-Axis by exploiting the behaviour of springs. It is easiest to perform in Stage Builder, but can also be done on Palutena's Temple, or by the use of Sonic's Spring Jump or Mega Man's Rush Coil. It was patched out in patch 4.0.0.
How to perform
In order to perform this glitch, the player needs to attempt to perform a wall cling the instant they start moving downwards after bouncing off a spring. The easiest way to do this is by making a custom stage with a wall right next to a spring. By attempting to wall cling after bouncing on the spring, the character will instead face forward, with their hitboxes following suit. Using the character to grab any character within range will cause them to face forward as well.
Performing the glitch with various characters leads to various, interesting results: