To be honest this would make sense as Sento now has the Bat Full Bottle so unless there is another then Gentoku can't transform into Night Rogue anymore, opening the door for him to get the Crocodile Full Bottle instead and become Rider Rogue.

In fact, I think I'll make a prediction on how the next few episodes are likely to go.

- Sento learns that Soichi is the one who framed Banjo for Katsuragi's apparent death

- Soichi is revealed to be Blood Stalk

- Backstory is unvelied claiming exactly what Blood Stalk's true motives are, Katsuragi is confirmed to have faked his own death and wiped his memories, giving himself a new face. It is then revealed that Sento is in fact Katsuragi with Taro's face, explaining his high IQ and similar preferences to Katsuragi.

- Banjo upon learning that Sento is really Katsuragi, understandably gets a bit mad and starts to come into conflict with Sento around the time when Sento gets RabbitTank Sparkling. Hence the scans of the two fighting.

- Around this time, war is declared between the three neighouring regions (maybe that might be too soon plotwise but I do expect a war to break out between the three at some point)

- Nanba Industries is the one which develops the Scrunch Driver as part of the war, as an evolution of the Kamen Rider System. Banjo ends up working for Nanba (a bit of a stretch) and this is how he obtains this driver. Nanba also supplies Faust which is how Kamen Rider Rogue comes into being.

I would be very surprised if everything I said is true but the first four seem likely.

Sento doesn't have the Bat Full Bottle. The Bottle he grabbed from Utsumi wasn't Bad, but a random one to commit suicide with, like that guy from before.

i have a theory
First the person who we think is Sento Kiryu is really Takumi Katsuragi who's face was changed by Bloody Stark. Consider that one Taro Satou is not a scientist he is a rock and roll punk who when in for a study to earn some cash so here is the thing how do you get smarter from that i don't think this guy just wanted to be a rock and roll star but was also a brilliant scientist i think that these are two different people. Now Here is the question how did he get smarter as drugs make increase your intelligence but actual knowledge isn't something a drug will give you. Now its possible the info is implanted but we haven't seen that yet. So i think what happened is this


The real Taro when to Katsuragi's place but stark was the one who had put up that ad and was waiting he knocked him out and killed him but then changed his face to that of Katsuragi and left him there for Ryuga to take the fall for the murder. He either then or had already wipe his memories of Katsuragi and had intended to use him for something else either as a worker to improve the rider system or as a test subject or he deliberately let him go as part of a plan with the cafe store owner to train him and make him stronger so they could create a more powerful build driver system. Either is possible but it would explain things that don't make sense other wise.

One WHY is he so smart when its fairly obvious he wasn't before all this happened
Two Why even though they know where they are they don't do anything
Three why he cried when he hate the food katsuragi's mother made that was seasoned to the tastes her son had
Four Why Stark is letting him have the things they need like bottles to build weapons to work with the rider system and clues like the research data which gives him something to work form

Now there is a possibility that it was a mental download of Katsuragi's mental data into his brain but i think that this is less likely as these researchers on Fausts side don't seem to be making much other than more smash monsters and if their goal is a weaponized kamen rider system then its Build himself making the stuff they would need so i suspect my theory is more likely correct. Why they are doing this is most likely that Katsuragi founded Faust to protect people but the people he worked with most likely who ever bloody stark is double crossed him, also i suspect Stark is Nariaki Utsumi. Consider that he is right near everything and now he is presumed dead he now no longer has to worry about hiding plus he can change faces he could be other people we just haven't figured out who he is pretending to be. as even if he was in the same room as stark it could be some one who's face he changed and then later changed back and either killed them off or they are still waiting around but there isn't much to go on for that part.

Man, Build is so good at keeping up the momentum I'm only sort of very angry they dumped the opening for however long they're dumping it. For Ex-Aid it was several months, so... yeah. If we can't even get Rabbit Tank in episodes anymore I don't feel so great about the opening's chances...

Next episode looks amazing and that place with Pandora's Box is totally the same place Yggdrasil kept their big tree! Coincidence, or secret movie tie-in? YOU DECIDE! The real answer is that Toei are cheapskates.

Oh, and Sento talks about "calculations" when he finds the Train Bottle, but clearly he's just too proud to admit he only recently noticed the labels.

Actually, they set this up extremely subtly. If you go back to the previous episode (I think the scene where he's building the Beat Closer) you can see that Sento did indeed figure out that Best Match through...science I guess. He has it written on the whiteboard, along with some brainstorming about the weapon.

In retrospect, that may be why he thought Shoubousha could be Kaizoku's Best Match in whichever episode that was. He had probably figured out that its Best Match was some sort of big blocky vehicle, but not what exactly.

Kind of a cool detail, even if it doesn't make the actual Best Match any less nonsensical.

yeah I really don't dig the suits.

Rabbit Tank and Gatling Hawk were cool looking.

The Lock? silly
The Vacuum? silly
Comic Ninja? silly
Train Pirate? silly
Diamond? silly

I talked a friend into watching this show because I was telling him Kamen Rider is cool and he'd never seen it. Now I'll probably never get him to watch any tokusatsu again because the costumes are sort of ridiculous. Way more ridiculous than Kuuga or Agito or Amazons or W or OOO's or any of the other ones I've seen.

The unicorn horn on Rogue and Stalk didn't help either. He busted my balls about how goofy the costumes were and I just had to be like, "yeah...I don't know I've never seen them be so goofy." I should've tried to get him to watch Agito or Amazons.

Rabbit Tank was cool and I can't remember the last time I saw it.

Eh I can’t really agree, I like the suits and don’t really think they’re all that silly. Especially not compared to some of the other suits we’ve had in previous years.
Anyways great episode, reallly been loving this show so far.

The suits are not particularly goofy for Rider-standards, and if your friend enjoys the rest then it doesn't really matter.

@Topic: The episode was great, my only critique point is the second Driver out of nowhere. I think it would've been a better decision to just have one for now and kindle a bit of rivalry between Sentou and Ryuga over who gets to use it.

Also, I felt it was way too early for Sentou to get all of his bottles back but I guess they need to promote more toys ¯\_(ツ)_/¯

Sorry but I think a vacuum cleaner for an arm or a railroad track across his eye is definitely pretty silly looking. Much sillier (imo) than any costume I've seen before.

But I haven't watched every single series. ..but I have seen most of the costumes from all the different series and I still think Build has the silliest costumes.

It's just an opinion though and it's not like I don't like the show.

But comparing something like Kuugas Ultimate Rising form, or Agitos Burning form,.....to a vacuum cleaner arm,...well two of those look badass and one just looks silly.

I actually miss Rabbit Tank, I thought that was pretty cool looking and different.

I'm afraid that Build is pretty low on the silly suits scale in the grand scheme of things, so you might want to mentally prepare yourself.

Personally, I really like the Rider suits, Night Rogue, and Blood Stalk. The Smash are pretty inoffensive, but not particularly great.