Granted, the obvious explanation has something to do with merchandising, but the fact the episode confirmed that all of Ghost and Specter's gear are manmade filled up some of the initial questions I had with the series. The flashback sequence also revealed why Takeru received a blank Eyecon for his 18th birthday. As it turned out, Ryu wants to invest for the future and he believes of his son's infinite potential. It's a really novel move for Ryu considering that he was aware at the time that the Ganma are planning a big invasion and he is pretty much the fate of the entire world to his son.
Now that we are done with the flashbacks, it is time for more Shibuya. The Shibuya stuff in this episode is as strong as from the previous episode, and thanks to Takeru giving him advice about understanding his mom, Shibuya mans up later in the episode when they were cornered by a horde of Ganma. It's a really fun to sight to see, especially if you are a fan of Kamen Rider Den-O. It's like seeing Ryotaro all over again. It also helps that his mom is actually cheering for him to win. But sadly, his efforts are not enough, and as expected, Takeru saves him from the Ganma.
Speaking of Makoto, he also did some showing off in this episode. During his fight with Gyro as Ganma Ultima with Necrom, not only we got some darn good fight choreography, but we got to see Makoto dive a bit too deep with his powers. Because of this, Makoto unleashes Deep Specter's Enraged Mode and defeats Gyro. But that's not all; it also alerted Adel on what happened. I don't know how this will connect with the show's overall plot, but this brief scene further expands the stuff that was hinted in regards to Deep Specter's power.
Though the resolution with Shibuya's mommy issues was satisfying, the way they ended the de-aging plot doesn't satisfy me a bit. So yeah, good story arc, but bad finish. Anyway, the episode ends and seeing what's going on, Dr. Igarashi, just like Ryu and the Sage, entrust the safety of mankind to the future. Impressed with Akari's brilliance, he gives her his notes, hoping that she can figure out the Ganma problem. This is a really touching scene and given the fact that these two had limited interaction, the scene felt really satisfying character wise.