Okay guys, new set of images but with a twist.
I downloaded PSN Tekken 2 to have a Polygon based game to compare as well. Some interesting things popped up, and this included some PSP testing as well.
Here's the new S-Video Direct Feed of Ryu, screen captured through VideoGlide using Dazzle. It's screen cap isn't the best but it's what I had at the moment. I also added in the original "off hdmi" screen photos for reference. I love that the HDMI photo is still better than an s-video screen cap.
Here's Tekken 2
It should be noted that Tekken 2's download file size was 485 megs, which sounds about right for a PSX CD of this variety.
Now, while the above is food for fodder, something interesting happened when I transferred both of them to my PSP; Street Fighter Alpha isn't 'complete' - there are no sound clips in the transition screens (the Z-beam coming across, the spot where both fighters images pop up, etc). The music only kicks in when you actually get to the round. Bear in mind on the PS3 this music is present.
Tekken 2's music was fine.
Seems like the compression theory holds the most water, as well as the PSN game library is on a case-per-case basis on what oddities are hidden in the download.
In a separate instance, as far as the "Lego" orgies go, I think it depends on the HDMI monitor and the game. As mentioned, SF Alpha, as well as FF7 and Raiden Project all looked amazing. However, MGS and Beyond the Beyond had the lego thing going. From what I can tell, the less "elbow grease" that was used in a game, and the more it was programmed without "visual trick" the better it looks.
Though my visual judgment might be biased; I'm a graphic designer and I *love* seeing every pixel.