Dreg

Dreg is a willy whistle, black magick expert and evil sorcerer. He is the main villain of Puzzle Bobble 2, Puzzle Bobble 3, Puzzle Bobble 4, Puzzle Bobble Millennium, Super Puzzle Bobble and Bubble Bobble 4: Friends. He shared a very long rivalry with Bub and Bob before making peace in Friends. He is also the most notable villain of the Puzzle Bobble series as a whole, Bubble Bobble 4: Friends being his only appearance in a Bubble Bobble game.