[Matrixbeast]

Yeah. Blade's video quality is terrible.

And from what I know (Having never seen either ), the connection is that G3 (The cop mech) was designed after Unidentified Lifeform No. 4, Kuuga.

Here's the statement from the producers, who consider Agito and Kuuga to be separate.

Quote:

"You're free to enjoy Agito as a continuation of Kuuga if you so wish, or imagine it takes place in a parallel world, if you so choose. I appreciate this may sound like an asspull, however, so I guess I would say that while Agito takes place '2 years after #4 destroys the Unidentified Lifeforms', it is not a sequel to Kuuga, so take to the show with that in mind."

As stated and clarified by the Kamen Rider Wikia:
"The reason why the producers want us to think Kamen Rider Agito is an independent story is because, "Yusuke Godai fought so hard to put smiles on everyone's faces that if another conflict were to break out afterwards, it would diminish the value of everything he fought for." Thus the Kamen Rider Agito staff want Kamen Rider Kuuga to be a standalone, conclusive story in which at the end, Yusuke Godai protected our smiles."