Crazy Taxi (Acclaim Studios Cheltenham/Acclaim, 2001)
A port of a Dreamcast port from arcades of a game published by Sega published by Acclaim. It's complicated, but Crazy Taxi is as simple as ever: pick up a passenger, then get to their stop as quickly and dangerously as possible. I've always liked this formula. I've already got a newer PC version that runs and looks better, though, so there's no reason to go back to this one.
Cubivore: Survival of the Fittest (Saru Brunei + Intelligent Systems/Atlus, 2002)
A game about becoming the strongest Cubivore by eating everything around you, eventually mating, and then starting the cycle again. It was criticized a lot for being repetitive, and I can already see that it's going to be, but the idea of it is so fascinating that I want to come back anyway.
Cubix Robots for Everyone: Showdown (Blitz Games/3DO, 2002)
A boring action adventure game based on a TV show. Apparently it gets a bit like Pokemon later on, but that didn't seem to make anyone like it more.
Curious George (Monkey Bar Games/Namco, 2006)
A licensed platformer that's clearly intended for young kids. It basically plays itself, and I'm not sure you could fall off the first level even if you wanted to.
Custom Robo (Noise/Nintendo, 2004)
A game about building a custom robo and battling it against other robos to get their parts and make your robo more custom. It wasn't received well at the time, but has picked up a big cult following in the time since. I didn't get to see enough to judge either way in the time I had now, so it gets a list spot.
Dakar 2: The World's Ultimate Rally (Acclaim Studios Cheltenham/Acclaim, 2003)
A rally racing game that seems decently fun and looks to have good track variety. Unfortunately for it, this genre has advanced a lot in the 18 years since it came out, and I don't really see a reason to go back to this over something like Dirt or art of rally.
Dance Dance Revolution: Mario Mix (Konami + Hudson/Nintendo, 2005)
DDR starring Mario. You barely get anything unlocked at the start: just Mario and Luigi with one unbelievably easy song. DDR is not my preferred style of rhythm game, but even if it was, it's hard to imagine this being a go-to over Stepmania or similar titles. Still, it has a unique place as a "Wait, that happened?" kind of game.
Dark Summit (Radical Entertainment/THQ, 2001)
A snowboarding game where an evil warden is trying to ban snowboarders from the mountain. It apparently escalates into collecting bomb parts and shooting avalanche cannons, which seems like something I have to see given that the game is fairly short. It certainly doesn't look or sound like much, though.