Warning, spoilers ahead in this video...
Sorry for the poor edit, but it took almost all of my left space, so I had to edit the videos fast to free up some more space, the originals were in avi, so they were pretty big.
Anyway this shows majority of the UPSX maps in one video, lots of the maps are missing though, or are simply too old or inferior versions, in exception of Elya's own maps.
As you can see it is under software rendering, to make it feel more believable that how it would really look like under playstation, with the very low res textures. They look less blurry under software rendering, which is kinda what it was meant to do. Unreal software rendering is very powerful, but glitchy under modern hardware especially with such old versions. On playstation it would be even lower res, but modern hardware doesn't allow such low res. Please don't go saying fake all around like in the video which monokama posted, which was originally done by Nathan SIlvers.
One video segment ended up twice and it seems I accidentally deleted through the process other segments which were meant to be there, but whatever.
EDIT: Had to take out more of the video, due to 10 min limit.