[Zabitan]

I don't know about the Battle Grid itself but my head cannon is that the Battle Grid suits started out as prototype versions of the main suits.

Like originally Ryan's father invented the Battle Grid Ryan suit for a dimensional travel suit when he first discovered Virtual Reality, and he later invented the Battle Grid Kaitlin, and JB suits for Ryan's mother, and Professor Hart respectively.


And originally they were just for going to Virtual Reality, It wasn't until Ziktor became Grimlord and or created the Virtual Army that Tyler, and Professor Hart started working on what we know as the main VR Troopers suits.