For what its worth, I have noticed these things, and find them concerning.

1> Quality of in-game "3d" graphics suggests they may have been purchaced,
imported or stolen. There is just TOO much difference in quality of "its look"
between the 3D artwork and the really ugly 2D artwork.

2> The engine version he is using (in the link you supplied) is only A6.4.
There was NO lite-c at that time I believe. (can someone older verify this?)


Overall, IMHO, this project "feels" like he's done it himself, just gotten the 3D artwork elsewhere.