lore about this :The yellow shirted bat monkey hybrid is Oxaya,who was neglected and beaten by max pro designs father in the show,Jeff.oxaya was locked in the basement and had to eat his own tongue so he didnt starve of death.jimmy went into the basement some time later and saw oxaya.Jeff shot jimmy due to him seeing oxaya.he got tortured and beaten in the basement,due to how he looked. max knew what happened to oxaya but refused to tell jimmy. oxaya is a year older then max, being the oldest of the three. jimmy doesn’t know him and is scared because max always told him not to talk to strangers, he told him this specifically if he ever crossed paths with his long lost brother. as for what happened to oxaya all that time ago? only him and max remember.