MICROBIOLOGY 10 POINTS!!!!!!!!!!!!!!!!!!!!!?

OK so my unknown is due at 5 pm today, so I need someone who knows what they are talking abouts help.... My unknown right now is between 2 different microbes-- micrococcus and staphylococcus... The MSA plate is clear and the BA plate is a pale yellow.. I did a catalase test and smeared a slide with H2O2 and it bubbled.. I dont know if that has anything to do with it, but PLEASE PLEASE PLEASE help!!!