Hi bluebicycle. I think anger can be indicative of a mood state, particularly if anger isn't a more constant state for you (as if you had intermittent explosive disorder or similar). I don't believe one must have all symptoms of depression or hypomania/mania to be experiencing a mood state. I think that sometimes the "mixed features" are an odd mix of only a couple symptoms, or a person is having "mood lability", which may only include one or a couple symptoms."Mood lability" is common in bipolar disorder.