Diddy Kong

History:

Diddy is the nephew of Donkey Kong, though they aren't that different in age. Diddy's parents, Kong's brother and his wife, were killed by the Kremling Hordes shortly after Diddy was born. Therefore Diddy was raised mostly by Cranky and Wrinkly Kong along with Donkey, who matured a bit earlier. Diddy is still very much a young buck though and doesn't really own any tracks himself besides the Dino Dino Jungle, which due to its remote and dangerous location has never been very popular. He is still really a sidekick of Donkey Kong and hasn't really won that independence yet.

Double Dash:

Diddy appeared here as the default partner of Kong. Double Dash didn't place that much emphasis on Driver distinctions, more on Kart Differences. Characters only determined what Special Items they could use and ultimately what size Kart they could drive. Diddy is interesting because he's a Lightweight here while Kong is a Heavyweight, meaning that when partnered together they needed a Heavy Kart. In order for Diddy to drive his own Kart he needs to be paired with another Lightweight.

Diddy drives the Barrel Train, which stands out among Light Karts. It basically acts like a Heavy Kart, which is cool if you are in to that sort of thing. Unlike the Boo Pipes, though, which have the benefits of acting like a Light Kart while also being able to push people around, there is no real upside besides a greater ability to dodge hazards. In fact, the Barrel Train is the narrowest Vehicle in the game, which can be useful. It's also the heaviest Light Kart (12th Overall). Naturally it has the worst Acceleration of any Light Kart along with the Second-Highest Top Speed and a decent Offroad. It does have some of the best shocks and average turn speed. All in all it's okay if you're looking for a Light Kart with Speed, though it controls so stiffly you can't enjoy it that much.

Each Character in Double Dash has a personal Special Item. Diddy's is the same as Kong's - the Giant Banana. It's one of the better Items in the game for someone who likes to be in first, it creates a huge hazard for Racers coming from behind. Of course, if you're always the one in last place it's not going to help that much. Diddy is basically the Light Version of Donkey Kong, meaning he's great to be paired up with some other little guy with the Toad Kart, get in First Place early and dominate.

He is also the Secret Staff Ghost in two tracks. He leads on Dino Dino Jungle with DK in back in the Big Guy's DK Jumbo with a time of 2:00:908. For DK Mountain he switches with his Uncle in the same Kart with a time of 2:12:639.

Wii:

After missing DS Diddy returned in Wii. In this game each Character in three separate Size Classes each can drive up to Six Karts and Six Bikes. Naturally there are plenty of combinations. Diddy moved from a Lightweight to a Middleweight, although he's really not that much bigger physically. Each character also has their own Stat Bonuses to add to each Vehicle. Diddy gets a small Acceleration and Drift Bonus as well as a Mini Turbo Bonus tied with Birdo as the best among Middleweights. Therefore he's really pretty good for technical drivers on tricky courses that like to drift and boost a lot. Here are the Diddy-Specific stats:

The Classic Dragster best takes advantage of his bonuses, although he's also great in the Mach Bike. He's most associated with the Sugarscoot, which he can also be decent with. He only appears as a Staff Ghost in the Maple Treeway. It's actually a similar course to DK Mountain from Double Dash with the huge Barrel Cannon and it also takes place entirely on a system of trees. Diddy's Monkey Nature is perfectly suited for the association. The Normal Ghost pulls a 02:58.633 in the Classic Dragster, the Expert does 02:37.812 in the Sneakster.

Jungle Tracks

History:

There are many Jungles throughout the Mushroom Kingdom, many of which have seen the intrusion of Race Tracks, seemingly inescapable in any location. Riverside Park was developed by Wario during his many travels to the far reaches of the Kingdom. It exists through the Emerald Passage far beyond the Dry Dry Desert. Wario also sought to develop the Lakeside Park park track on DK Island, next to the Monkey Mountains. Eventually as tensions rose between him and Kong this track was shut down and no one has raced there in a decade.

Yoshi's Island is the location of Yoshi Falls and Dino Dino Jungle, both in the midst of lush water resources. Yoshi however, after overextending himself in numerous Desert Tracks was forced to sell the Dino Dino Jungle rights to Kong, who, with no interest in managing the course, gave it to his buddy Diddy.

Super Circuit:

There are two similar Jungle Tracks in Super Circuit that have never appeared in any other game. Riverside Park is as it sounds - a winding twisting track around and across a wide river. It is also possible to use some nasty shortcuts here. There are a few straightaways but nothing that dominates the course, and much more often there's tight turns with a lot of grassy off-road spots. Someone Lightweight is going to be the key here that can maintain speed while dealing with all that junk. For only being the third track in the Mushroom Cup it's a decently complex track, with jumps and twists and hazards.

Lakeside Park is the same kind of deal. It's a winding track around a bit wider water hazard, although it does have the distinction of transitioning from daylight to darkness after the huge volcano erupts. There is somehow both more of a straightaway and more sharp turns, making a clear-cut choice for who should race this more difficult. Since Toad and Peach by far the better Drivers in this game, they're always a safe choice. This course leads off the Special Cup, which is actually similar to D.K.'s Jungle Parkway leading off that Cup in MK64. It also features a big jump and lots of water danger, making it somewhat of a spiritual successor.

Double Dash:

Again in the Special Cup, Double Dash featured Dino Dino Jungle, which can be a very difficult course. It's a relatively simple Figure-8 but features an unstoppable gigantic Dinosaur over part of the course and then a dastardly wooden bridge without guardrails. There's also evil geysers that erupt from the ground but generally you can see them coming. There are a good amount of hills near the finish line that will decimate Kart without good shocks like the Waluigi Racer, probably at the time you need it most. This map actually does a nice job dividing the track into four quarter-sections: Jungle, Bridge, Cave and Mountain.

Double Dash had Secret Staff Ghosts for each track in Time Trials. The Ghost here is Diddy Kong taking the lead with his partner, Donkey Kong. They ride in the DK Jumbo because of Donkey's heavyweight status. Still, they put in a time of 2:00:908. I suppose they needed to give the Jungle Course to the Monkey since Donkey has DK Mountain.

This course returns in Mario Kart 7 where it is generally the same. There are some more Air boost panels and a few other small differences but other than that it hasn't changed a huge amount. The Staff Ghost here is Yoshi in a befitting way. The Normal Ghost goes 02:29.837 in the Egg 1 using Roller Wheels and the Parafoil. The Expert uses the Egg 1 again in Monster Wheels and Swoop Glider. He'll have decent speed and very good handling. The moderate amount of air travel doesn't make air speed a necessity, stick to something with good acceleration around those turns, such as sticking the Wood Wheels on the Soda Jet.

DS:

Yoshi Falls is one of the shortest courses in any Mario Kart game and is really a very simple loop. Therefore we see it in the Mushroom Cup, in fact, it's the Second Course of the game. The key here is getting the inside track, because the actual course is very wide. What makes this difficult is the occasional waterfall along the Inside Track that can be very hazardous for sloppy drivers. The first and third falls are the only ones that inexperienced drivers should attempt to cross, the middle is much steeper and more dangerous. Beyond that, plenty of gentle curves and nice straightaways, feel free to nab someone like Bowser who has some Speed.

DS also had Staff Ghosts. Here Yoshi clocks in at  0:57:677 driving the Egg 1. This course came back in Wii though with no major changes. That game had both Normal Ghosts and unlockable Expert Ghosts. The Ghost is Yoshi again, this time the Normal uses the Zip Zip in 01:16.461 and the Expert goes  01:09.175 in the Super Blooper. He uses the Super Blooper, really? It's the only Ghost use of that Kart in the game. It's easy now to switch to Funky, who tears through this thing.

8:

The Thwomp Ruins could be considered a Jungle Track but it was different enough that I considered it its own course. You can find more information about it here.

Koopa Paratroopa

History:

After Wario supplanted him in the mid-90s the loyal Koopa Troopa Bowser had chosen to race with him in the Grand Prix was looking for any chance to get back into the Races. When the Partner Rules of the 2003 Grand Prix were settled Koopa managed to wrangle another one of Bowser's forces, Koopa Paratroopa to ride with him. Paratroopa had seen heavy aerial combat in the many Wars against the Mushroom Kingdom, and although he would have rather been fighting Mario he agreed to race instead. Although Koopa has since found some stability, appearing in later races, Paratroopa disappeared after his only appearance. Koopa suspects that he used too many of his Red Shells on Lord Bowser, possibly sealing his fate after hours.

Double Dash:

Paratroopa only appears in Double Dash, as the default partner of Koopa Troopa, tho Koopa came back for Wii. I imagine in DS and Wii his role as a minor enemy has been taken by the more aesthetically interesting Dry Bones. Anyway, Individual Characters didn't matter in Double Dash as much as their Karts did. Characters determined Special Items and Kart Selection but not Stats. Each Character, though, has his or her own Vehicle. Paratroopa rode in the Para Wing.

The Para Wing is decent among Light Karts, but not the best. Its Acceleration is the 3rd Best in the game and its weight is 16th (both 3rd among Light Karts). It's relationship to the Koopa Dasher is similar to the Goo Goo Buggy's relationship to the Rattle Buggy. It has better turn speed but slower Top Speed and Acceleration as well as average shocks for those bouncy courses. It also somewhat inexplicably has one of the worst Offroad Speeds for a Light Kart, beaten only by the Bullet Blaster.

Paratroopa shares Koopa's Item with no changes at all, making that pair basically identical. The Triple Shell is one of the better Items in the game, although they no longer circle the Kart providing protection from aberrant objects. It's still a very good defensive and offensive item. Red Shells are especially useful in that Second or Third Place position to directly take down those ahead. Since you can't hold Items behind you it's a bit more difficult to deflect incoming objects but not impossible. They're pretty useful for climbing up a Grand Prix ladder.

There are Secret Staff Ghosts for each Track in Double Dash. Since no Secret Characters are used as Ghosts, the Koopas inherited the Mushroom Tracks from the Toads. Paratroopa leads on Mushroom City with Koopa in tow using the Koopa Dasher in 1:50:663. He also appears on Mushroom Bridge this time behind Koopa and goes a time of 1:31:458/