The ones off of the top of my head...

Stand Alone:

1. Titan A.E.

On a Disc OPM

1. Macross VFX 2 (can't recall which disc)

Several of the PSX Underground games featured Import games that usually had no chance of coming out over here. However, technically the one issue had Metal Slug 1 on it, which was supposed to have come out over here. Sadly, it was over looked and it wasn't until Metal Slug X hit that one was brought stateside.

As for NBA 2 Ball, though listed as a "demo" it is in fact a 'full game' - where by full game I mean it's just a round of 2 Ball. There was never a full game planned; though truth be told the programmer I interviewed said used the NBA Jam Extreme engine, so it's possible that it may have been inadvertantly subtle 'demo' of NBA Jam Extreme.

Sadly, we just don't know yet. I have the only version not in the programmer's hand, and its missing a chunk of the disc.