Any speculation as to why Agito is able to duplicate a zoalord's abilities? Could it be an effect of the Zeus upgrade or...possibly, Agito was originally meant to become a zoalord and he had undergone some modification to prepare his body for the final change?

No he was never meant to become a zoalord for Chronos. At the time the 12 Zoalords were happy with their zoaform arrangement. The fact that Murakami was a zoalord not of the 12 was a suprise to them and it did anger them alittle. More than likely he was going to be a hyper zoanoid of some kind.

No, I think he added the zoalord abilities to further boost his powers. After all it was Agito who made the Zeus armor.

Agito has access to Creator Tech and the means to use it. His Unit wasn't a normal WG Unit Type..... (that was the hint).

The hint is the base unit or the Zeus unit?

I highly doubt his Warrior Guyver unit is anymore normal than WG2's other than maybe a few tinkering here and there that Solom himself did to the unit.

From what I gather, Zeus is the product of the Solom's memory used by Agito (with his limit knowledge), and the Genesis Project. Agito used his basic knowledge of how the regular Gigantic upgrade works, then added a few things here and there. A CPM there, some zoalords powers there. The Zeus unit wasn't created by the natural means.

In terms of firepower or anything that would help in battle the WG unit WG3 has is the exact same as WG2s (basically the standard version of the WG unit there).

Solom's unit though has access to what Solom knew as it was a memory store. Question is really how fast and how much understanding can a human mind do to put that to use.

Which could be why he would be after a matrix or something technologically advanced enough to download and process all that information...

or simply put, WG3's unit already has some matrix powers in it, which would explain why it would store host memories in it and be able to be accessed by anyone rather than merging the hosts together to get that.

or simply put, WG3's unit already has some matrix powers in it, which would explain why it would store host memories in it and be able to be accessed by anyone rather than merging the hosts together to get that.

Uh, no, WG3 does not have Matrix powers in it. WG3 only has the knowledge of the WG2 universe Solom stored within it since it was previously Solom's Unit and Agito had to bond to it to access that information.