Bunny Must Die! Chelsea and the 7 Devils first launched for PC via Steam on September 26, 2013. An improved version was first released for PS Vita on July 21, 2016, followed by PlayStation 4 on October 20, 2016.
Here is an overview of the game, via Mediascape:
The year is 1999X. After a curse causes Bunny to grow cat ears when a purrmodynamic power plant explodes, she is led by a chubby and divine messenger into the Cave of Devils so that she can remove the hex.
However, a mad bull appears out of nowhere, killing the messenger after stabbing him 24 times!
An improved version of the PC dungeon-crawling action game Bunny Must Die! Chelsea and the 7 Devils. March through the Cave of Devils together with Bunny, her five weapons, and her ability to manipulate time however she pleases!
Watch a new trailer below.