* Yellow Four I's death in episode 10 was extremely heartbreaking, from the fact that Mika did her best to find a weakness in the Bio Killer Gun that was her undoing, to shielding everyone from its blasts until it was completely depleted of Anti Bio Particles, to her funeral. Hikaru in particular is heartwrenching to see, crying like her own mother died, and thinking she was alive for a second, only for it to be Mika's Bio Hologram saying goodbye.