honey the cat
A Sonic character based off of Honey from Fighting Vipers, a fighting game series also by Sega.
She was originally meant to appear in Sonic the Fighters and even had a complete model and moveset, but was ultimately scrapped from the arcade game for unknown reasons. However, her data was still present within the game, ergo making it possible to still play as her via hacking. Honey was eventually restored into Sonic the Fighters officially when it was remastered for its digital release on Xbox 360 and PlayStation 3 in 2012. Just highlight Amy, press the start button, and then select!
Honey would make further appearances as a prominent character in the Sonic comics published by Archie Comics and made a cameo in the Sonic the Hedgehog Free Comic Book Day 2021 issue by IDW Publishing.