Bandai seems to be going all-out with Gundam Build Fighters; it has 3 spin-offs already.
2 manga: Build Fighters D (Document) and Build Fighters A (Amazing), focusing on Yuuki from when he first starts getting into Gunpla up until he becomes known as the Crimson Comet.
And now a photo drama that will run in Hobby Japan called Build Fighters H (Honoo), which will follow an original character that uses a Zeta Gundam with Caledvwlch and wants to win the Gunpla Builders World Cup.
Asura.Abysswalker said:
»You could have at least colored it in.
It's not mine; it's done by one of the animators working on Build Fighters; the animation director or whatever posts them on his Twitter. :I Pretty sure most of them are just done for fun... or we're going to be in for some weird episodes...