The mini-bosses mostly just look like giant blobs of marshmallow. (mashthosebuttons.com)
At first, Fred and Ginger are just giant blobs that make a cooing noise, but eventually they shed their cuteness and get violent; I'm talking Michael Myers violent. (shockya.com)
They don't rise very much so don't worry about the muffins becoming one giant blob thing; that won't happen. (treatswithatwist.com)