Board Thread:Challenge of the Day/@comment-25337988-20140915050447/@comment-24491127-20141009002909

Na-Na-Na-Na-Naa-Na: Use the "Happy Puppy" gesture (for the Chomper) after every zombie you vanquish

Sun Son: Complete a level using only Sunflower, Citron, Winter Melon, and Threepeaters. No PFing the Sunflowers