I watched this episode yesterday and now I'm pinching myself for not keeping close attention to the series. The highlights of the episode were: Z transforms to a little kid in order to process fun leading him to be befriended by a kid, the scene between the doctor explaining Z about the newest scanning hospital equipment, the hospital bedside scene where Z questions himself whether he should let Ro continue to accompany him in his search for the developers, Batman mistakes Z as the originator of the mall rampage lastly, the final destruction of the other infiltration unit at the hospital.
The incidences of mistaken identities made by Batman against Z heightened the already suspenseful segment since the second infiltration unit seemed unstoppable and I had thought Z would be destroyed.
The story was good and I didn't see immediately that the hospital's scanning equipment would be instrumental in destroying the 2nd infiltration robot. I enjoyed watching the episode and I can't wait what will happen next.