Team Ico/YMMV

Never Live It Down: Judging by comments about The Last Guardian, the team has gotten the reputation of having Downer Endings...despite the fact that out of the two games they've made, one has a clearly Happy Ending, and the other is Bittersweet Ending. This explained by both games' overall tearjerking catharsis process.
- Word of God for ICO: "In Japan there's this saying, 'when it ends well everything's well'. My theory was to already in the beginning of the game make the player understand how important the ending would be. Then the player would strive to reach it, it would keep up motivation the game through. Because I believe that the only purpose that games have is to enrich the hard life we live. And that's why ICO got a happy ending." This basically means that the games will always be solidly on the Idealistic side of the scale.
So Cool Its Awesome: Ico and Shadow of the Colossus both place near the top of most X Best Games of All Time lists.
Tear Jerker: The overall mood in both of the so-far-released games is nothing you could call "Light Hearted"
- The back-story in ICO is pretty depressing even if the ending is fairly happy, and it certainly puts you through the wringer from beginning to end.
- If you don't feel something at least once after finishing off a Colossus, you are a horrible person and probably kick puppies. If you play all the way through Shadow it's a Bittersweet Ending at best.
- Judging from the trailers for The Last Guardian the packaging might as well come with a gun and a bullet with instructions that say "For your heart."