Okay, explanation time. So, around the time I made Bobby I had befriended the loveable goof that is  SDM6784904 and during that time, we thought it would be interesting to make Bobby be part Bakugan - for whatever reason, I don't really recall - and he came up with the idea that Lumagrowl, one of the antagonist Bakugan from... Gundalian Invaders I believe, was his father, but we still don't know who his mother is. Will we ever know? Probably not. But, there's always a chance!