The melon-headed warrior, french fry

No, thank you.

What is that, like a prototype design or something?! lol

It's just the undersuit that briefly appears before the Robot Jelly applies the armor:
https://vignette.wikia.nocookie.net/...20180114072059

I love pseudo "base" forms like this! Like how silly do the Kabuto riders look before the rest of their helmet forms after casting off.

https://66.media.tumblr.com/51369d9a...9wso1_500.gifv

Kabuto looking like a cycloptic mosquito in Rider Form. :lolol

Pre-forms can be charmingly cursed

https://vignette.wikia.nocookie.net/...20180717124337

I didn't need to be reminded that Navy Blue is an underused suit colour and the fact Build only used DragonLock once WOUNDS me

I just want to point out that this was the first ever Kamen Rider suit I saw in live-action:

https://vignette.wikia.nocookie.net/...20161002040453

That probably works better without having anything else to compare it to, actually.