Muscle Party (Deadly)

This is the stage where you can unlock the true form of Crazed Gross Cat. Currently, it is only available in the Japanese version. Using Cat Food to continue the battle is not allowed in this stage.

Appears

 * The 12th day of each month (after unlocking all 9 Crazed Cats)

Reference

 * http://battlecats.spica-net.com/chapspecial/s1104.html