|Manga||Volume 9, Chapter 76|
|Video Game||Bleach: The Blade of Fate|
Bonnie (affectionately referred to as Bonnie-chan) is a pet boar owned by Ganju Shiba.
Bonnie is a reddish-brown boar with an angry expression. She wears a red ribbon which Kaien Shiba gave her on the back. Bonnie is tattooed with kanji lettering on its side, which roughly translates to "four-wheeled drive."
Bonnie was found by Ganju's brother Kaien in a mountainous area of Rukongai, when she was a piglet. She was injured at the time and was looked after by Kaien. Bonnie's ribbon was given to her by Kaien. Bonnie was very fond of Kaien and she is still not as emotionally attached to Ganju as she was to his brother.
Soul Society arc
When Yoruichi Shihōin, Uryū Ishida, Ichigo Kurosaki and Orihime Inoue are discussing how to get into Seireitei with the town elder, Bonnie throws Ganju in through the door, making the Ryoka surprised to see a "wild pig" run in.  At nine o'clock, Ganju calls her and she jumps above Ichigo, ramming Ganju. Ganju then makes an escape, riding her. 
Bount arc (anime only)
Note: Events occurring in this arc are only in the anime and do not constitute canon material.
Ganju, invited to a cookout by Captain Retsu Unohana with her and a few others from the 4th Division, is shocked when he thinks Bonnie has been cooked into the stew. However, Bonnie was not cooked.
The Thousand-Year Blood War arc
Appearance in Other Media
In Bleach: Blade Battlers and Bleach: Blade Battlers 2nd, she, with some other boar, are a distraction for player(s) playing in the Rukongai district stage. She and the other boar are running around the stage and causing 1/8 damage to the lifebar of those who got hit by her or the other boar. Bonnie is a playable character in both Bleach: The Blade of Fate and Bleach: Dark Souls.
Bonnie also makes a brief appearance in Bleach: The 3rd Phantom, she is shown choking on a rice cake that Shiyo fed her, until Ganju and the player's character arrive and stop her from choking.