The tiny animal suffered terrible injuries and died as a result, magistrates were told.
Gina Robins, 30, appeared in court charged with causing unnecessary suffering.
The case is being brought by the RSPCA after the owner of the short-haired cat made a formal complaint.
Robins denied the charge when she appeared before magistrates in Torquay, Devon. She spoke only to confirm her name and address.
She was released on bail and due back before magistrates on August 12.
The charge was brought under the Animal Welfare Act 2006.