Hermit Peng is basically a Jackie Peng, except it does a lot more damage and has more health, and has area attack. Looks like a bald penguin with a beard and giant eyebrows. Attacks by spinning around in the air, dealing massive damage to all within its attack range. He is usually buffed a couple hundred percent in almost every level he appears.
A good strategy to defeat the Hermit Peng is to spam smaller cats such as Wall Cat and Macho Cat, while sending higher damaging cats with long range, such as Bahamut Cat and Dragon Cat, to damage it while staying out of range. Valkyrie Cat can also be used to defeat this enemy, as its attack range is not long enough to reach her from behind meatshields.