Idle poses (sometimes referred to as idle animations, and referred to as Wait_ in Super Smash Bros. Melee's debug menu and in internal Brawl files) are minor, mainly nonconsequential animations that play at random if a character stands still for a length of time.
Though mostly aesthetic, idle poses can change the direction of the passive shields carried by Toon Link and Young Link, therefore affecting their ability to block projectiles. Prior to Super Smash Bros. 4, this also applied to Link.
Lists of idle poses
Main article: List of idle poses (SSBM)
Main article: List of idle poses (SSBB)
Main article: List of idle poses (SSB4)
Main article: List of idle poses (SSBU)
List of characters without mirrored stances
Starting in Super Smash Bros. 4, certain fighters will face the screen regardless of which direction they are facing. In Ultimate, the only way to see them facing away from the screen is with a move that flips them around, such as Cape. The following characters still keep the distinction of being able to face away from the screen:
With the exceptions of Marth, Roy, Young Link, Toon Link, Pit, Lucina, Robin, Dark Pit, Chrom, Simon, Richter, and Sephiroth, as well as Link before Ultimate, all characters listed face the screen when facing right.