My thoughts!
Episode 13:
Yes! It's Decade's time and we even got Inoue back too (for a moment, I was positive Jinga would keep him from doing it), and we've got Zi-O wielding the Ghost Armor for a change. Always love it when Geiz and Zi-O swap watches. Love it!
13.5:
Now this, I like! It's basically just the actors talking about their schedules, other references, and other dorky things that we all love. If more .5 specials were a bit more like this, I'd be perfectly happy.
Episode 14:
Ghost/Decade arc, part 2! I always knew Decade and Zi-O would have something special, even if it's a rivalry. Kind of overshadows the fact that Specter's actor came back too... But over all, great episode, great Ghost arch. And also, I am going to refer to that short moment where previous Riders get their memories and/or powers back as Flux Time, because it's a moment of temporal flux.
14.5:
There. It's confirmed. Decade is magenta. Can we please lay any doubts to rest, naysayers? Please? Also, gotta love how everyone is saying Narutaki's line. He's there in spirit!
Episode 15:
Decade part 3?! Holy moly... Never would have expected to see Geiz putting down his emotional defenses to give Sougo a chance to redeem himself. But nevermind that, because we FINALLY get our answer as to why Sougo wants to be a king! Because... of a reoccurring dream telling him so? I smell time traveling/repressed memories shenanigans. And about that ending... Is that really Oma Zi-O or is it a parallel version? I mean, he did go through Decade's dimensional wall thing, so maybe this is a red herring?
15.5:
At first, I was enjoying this. All the over-acting and self-aware moments are gold! But then, that bad news... These .5 specials are ending... NOOOOOOO!!!![/vader] Also, how DARE the deny us seeing Tsukuyomi as a Rider!
Episode 16:
YES! Decade part 4! How long has it been since Kamen Rider has had a 4-part special? Anyways, I guess I got my answer. That really was Sougo from the future, and not Decade pulling the wool over our eyes. (This just a small thing, but I find it hilarious how the little kid bystanders don't know the difference between a monster and a robot.) Well, it took a lot of episodes, but I hope Geiz and Sougo will finally get along after all this. They basically have an understanding now. Love the new insert theme, it somehow is more fitting than Decade's "Ride the Wind". Also, I am guessing all of this story was possible because Sougo forgot to destroy his Zi-O watch along with his driver belt. If Sougo had remembered, would that have changed the story, or would Woz have a replacement Zi-O watch ready as well?
Episode 17:
Well, Decade was not technically defeated or made into an ally. He is gone this episode, but he will be missed... Maybe he'll come back soon? I almost thought it was just coincidence, but now I am certain of it. I absolutely love the subtle references to "Back to the Future" and "Terminator". I highly doubt 2022 will be like this, but I'd be cool with an actual ninja-themed Rider show sometime that year. And now we have the premiere of Kamen Rider Woz... And it's actually a 2nd Woz from an alternate timeline? AND it's Geiz's retainer this time?! I did not see this coming, but I love it, and I can't wait to see how this tests Sougo and Geiz's relationship. Man, I was all ready loving this show from the beginning, but now we are truly getting to see this show shine by doing its own thing.
16.5 has not been subbed by Over-Time yet. I haven't seen it, so I have no thoughts on it yet. I'll be sad if that really is the end of the .5 specials, but it was a fun ride while it lasted.