- Tiara was an original character set to debut in the now cancelled Sonic X-treme game along with her father, Gazebo Boobowski. Not much is known about her, but despite the cancellation, Tiara received two cameo appearances in Archie's Sonic the Hedgehog comics.
- According to Ian Flynn in a recent Q&A, Tiara is unable to make another appearance in the comics due to reasons he cannot state.
- Tiara Boobowski is also supposed to be Sonic's love interest, but unfortunately, according to Sonic fans, she was not a big canon character and was not liked a lot. This is one of the reasons to why she only made two appearances. After about hearing this, some rumors are said that maybe she could be the cause of two characters, as in saying she's a fusion of Sally and Amy. Who knows, But it could be true.