POLE7645: The port to the second game was crap, but the port to the first game was actually pretty good (most of it's problems are due to being made back in the early 2000s).
neurasthenya: I'm not found of it. Straight port of the PSX and kinda glitchy on the graphical department.
Of course, there's going to be graphical glitches with modern graphic cards. It was made in 2000.
They removed most of the Psycho Mantis parts (that wouldn't work on PC), added the option to save anywhere and the option to move and shoot in first person, included the VR training expansion straight out of the box and enhanced the graphics (mainly higher resolution and better lightning). So, I wouldn't call it a straight port.