Basically just list games you think either could have done better, or didn't get as much credit as they probably should have. Maybe even name games that may not even been good per se, but have always just stuck with you:
(http://www.vgmuseum.com/scans/psx2/Red%20Ninja%20FDO.jpg)
Red Ninja: I remember when I was younger playing this game at my cousins house (this will pretty much go for all of the games I list) I thought the concept was pretty awesome, and I really liked the way the girl fought. It was one of those games I didn't really play that much, but it always stuck in my mind.
(http://3.bp.blogspot.com/_YMTBmF6Ijyo/THqCBq38hfI/AAAAAAAAABA/2Sy1WZ0K2nY/s1600/2317-okage-shadow-king-1-ivfzt.jpg)
Okage:Shadow King: Oh my god, the first time I played this game I more or less was like "this is weird, and why did that kid sell his soul to the devil for a pig" so clearly I was a bit confused. After about a good 3 to 5 years I could not stop trying to figure out what the name of this stinking game was, and finally found it and watched game play of it. I actually really like the concept/storyline as well, (though it is said to get really difficult as it progresses) and I do feel it should have done better...
(http://upload.wikimedia.org/wikipedia/en/thumb/b/ba/Nightshade_(PS2)_Coverart.png/250px-Nightshade_(PS2)_Coverart.png)
Nightshade: Now where the gameplay isn't really that amazing, I think the only reason I even remembered this game was because the ladies like hair tie things would leave a trail of red behind her, and I always thought that was the coolest shit. I still think the game looks fun, even if the controls make you want to commit genocide. I feel like they could have done better with it. It's apart of the Shinobi series, which I believe had other, more popular games, buuuut alas... this one didn't really live up to their name.