Short and petite, Rukia has light skin and purple eyes. Her hair is black, with several strands of hair always hanging between her eyes. As a Shinigami of the Gotei 13, Rukia wears a standard shihakushō. She wears a fingerless white tekkō, similar to Byakuya's, which extend above her elbows. She is graceful and "clean", yet modest. However, her cool and lone demeanor often forces her to hide her personal troubles, even from her friends. Rukia never opens up her heart, and has difficulty making friends.
In Super Smash Flash 2
Rukia appears as an Assist Trophy in Super Smash Flash 2. She uses her signature technique, Some no mai, Tsukishiro, an attack in which Rukia slashes forward, damaging and freezing anyone in her path. She waits a couple seconds before attacking if there's an enemy on stage but they're not in front of her.
In earlier versions of Super Smash Flash 2, Rukia appeared during Ichigo's on-screen appearance. She would transfer her power into Ichigo's human form to make him a Soul Reaper before vanishing with Ichigo's human form. For unknown reasons, the on-screen appearance later featured Ichigo already in his Soul Reaper form and Rukia would no longer appear.