Right-click nycat.rar and select or Extract Here . 2. Move to Minecraft Directory
Move the .class files from the extracted nycat folder into the minecraft.jar . nycat.rar
You must delete the META-INF folder inside minecraft.jar to prevent the game from crashing. Right-click nycat
Open your command (Windows Key + R), type %appdata% , and hit Enter. Navigate to .minecraft > bin . Open your minecraft.jar file using your archive tool. 3. Finalize the Install nycat.rar