Data-Navi Pro Yakyuu (Data-Navi Pro Baseball) (Nowpro/Now Production, 2000)
This is already something like the third Japan-only baseball management sim. It's a lot more arcade-y than the others and you can get into a game in a few seconds if you don't think too hard about your batting order or starting pitcher. But then it turns out that games are just watching the game play itself and all you can do is change your overall strategy occasionally. Kind of boring.
Data-Navi Pro Yakyuu 2 (Nowpro/Now Production, 2001)
The same game with better UI. Iterative yearly sports games are everywhere.
Dave Mirra Freestyle BMX (Neon Studio/Acclaim Max Sports, 2000)
I had this on GBA, and I have to say that the GBC version looks a whole lot better than I was expecting. It's still just Tony Hawk on a bike, but that's probably appealing to someone.
David Beckham Soccer (Rage Softworks/Yoyo Entertainment, 2002)
This game sucks. Shots and passes go straight in the direction you're facing, which is quite a problem on an 8-directional dpad in a game where "straight ahead" is almost always the only one of those directions pointing at the goal. It's zoomed in so close that you can't know if your passes or free kicks are going to anyone, but that's okay because the defense is hopeless and you can just run down the field solo every time. The screenshot shows a penalty kick, which has your player rotate quickly back and forth so you have to time your shot to intersect with the goal. There are a lot of penalty techniques, but rotating slowly in place is not one I've ever seen.
David O'Leary Total Soccer 2000 (Ubisoft/Exient Entertainment, 2000)
David O'Leary may not have David Beckham's brand recognition in the US, and his game may be uglier, but of the two it's by far the better soccer game. It's fast, you can see where you're passing, they have actual team and player names, and your players even aim their shots themselves.
Dear Daniel no Sweet Adventure: Kitty-chan wo Sagashite (Dear Daniel's Sweet Adventure: Search for Kitty) (Imagineer/TOSE, 2000)
It starts out with Hello Kitty visiting London and being told that the missing Kitty is in Italy, which makes it sound like it's going to be Carmen Sandiego. But as you can see, it's actually just another character platformer. Seemed fine.
Deer Hunter (Vatical Entertainment/Morning Star Multimedia, 2000)
There are supposedly deer on this map, but I never saw one after clicking every spot on this map. I decided a screenshot of deer droppings was the most accurate way to represent it.
Deja Vu I & II: The Casebooks of Ace Harding (Kemco/Infinite Ventures, 1999)
Point-and-click noir detective game. Not my kind of game, but I appreciate that there's a dedicated punch interaction that lets you punch every available surface. Wham!
Dejiko no Mahjong Party (King Records/Broccoli, 2000)
Asks and answers the question "what if mahjong hurt to look at?" I assume graphics bugs are partly responsible for how truly awful this looks, but those pieces would be hard to read even without the weird green pixels.
Denki Blocks! (Rage Software/Denki, 2001)
You'd probably guess this was a Japan-only game based on the title, but it was actually exclusive to Europe. It's named for its Scottish developer and has you trying to get all the blocks of the same color to touch in as few moves and as little time as possible. All the blocks move when you press any direction, so it's a lot of using walls and the edges of the screen to block progress and let the blocks behind catch up. A bit like those fights in A Link to the Past with enemies who copy your movements.