The number of random minigames and references in FFXIV should probably not be surprising, but the G-Warrior is definitely something I was not expecting. If I were more familiar with Gundam I'd probably see the parallels there, but as it is the Evangelion connection is strong.
Part of me wishes there were a little more complexity to it, but part of me is glad I don't have to buy a set of twin joysticks just to pilot the thing.
[minor spoiler for Heavensward and Rebuild of Eva 2.0 ... you have been warned]
the part when Alphinaud removed Nidhogg's Eyes from Estinien's Armor reminds me of Shinji rescuing Rei in 2.0 (and almost triggered the 3rd impact)
And i don't mention all the references to the Moon in Endwalker, with the black moon in Eva