SNES Donut Plains 1

Donut Plains 1 is the second course in the Mushroom Cup of Super Mario Kart. It was later reused in Mario Kart: Super Circuit as the second track in the Extra Mushroom Cup, in Mario Kart DS as the first track in the Banana Cup, and the featured course of the Hammer Bro Tour in Mario Kart Tour.

Course layout
The course features a lake which is to be crossed by a bridge. Though the major part of the lake is surrounded by crash barriers, there are some places where the player can fall into the water. Another obstacle of the course, alongside the fact that it is relatively curvy, is a large lake of mud just before the finish line, which makes drivers' control over their karts difficult.

Shortcuts

 * Turning right after the bridge, the user can boost across the grass patch.
 * After the first bend after the bridge, there is a gap in the crash barrier. Players can go through here to cut off a bit of the track.
 * Boosting through the large patches of mud around the corners can save some time.

Mario Kart: Super Circuit
In Mario Kart: Super Circuit, Donut Plains 1 is the second track from the Extra Mushroom Cup. It uses the background of Riverside Park. An item box has been added to the right side at the start of the second U-turn. The pipes on the side of the road have also been removed.

Mario Kart DS
Donut Plains 1 is the first course in the Banana Cup. Like every other Retro Super Mario Kart track in Mario Kart DS, it only has 3 laps instead of 5. The bridge at the beginning has been widened and the first mud patch is larger. The mud patches now slow down racers. The pipes are green, rather than orange. Mission 2-3 ("Drive through all red in order!") is played on this track with Donkey Kong being the playable character. Donut Plains 1 was never available in Wi-Fi mode.

Mario Kart Tour
Donut Plains 1 reappears as a classic course in Mario Kart Tour, debuting in the Hammer Bro Tour. It generally retains its Mario Kart DS layout; however, the walls within the course are thinner, and the barriers left of the bridge are absent. The bridge is also reverted to its original width. The gap in the wall after the second turn is shorter and moved right. The pipes are also gone, as in the Mario Kart: Super Circuit version of the course. The lake does not extend to the starting turn, and its two sides near the second U-turn are the same length. The brown hills in the background are also removed. This course is a favorite of Boomerang Bro, Monty Mole, Green Shy Guy, Dixie Kong, Mario (Chef), Peach (Wedding), Cat Rosalina, Yoshi (Gold Egg), Wario (Cowboy), Chargin' Chuck, and the King Bob-omb Mii Racing Suit. It is also a favorite of Dr. Luigi and Donkey Kong Jr. (SNES) if they reach level 3, Peachette if she reaches level 6, and Mario (Classic) if he reaches level 8. Beside Donut Plains 1, the Hammer Bro Tour introduced a reversed version and trick version of the course called Donut Plains 1R and Donut Plains 1T respectively, with the 2020 Yoshi Tour subsequently adding a reversed/trick version, Donut Plains 1R/T. The R/T variant of the course adds a gliding ramp near the first shortcut.

This course uses the original version of its music, despite it being arranged in Mario Kart: Super Circuit, Mario Kart DS and Mario Kart 8.

For this course's tour appearances, see List of SNES Donut Plains 1 tour appearances in Mario Kart Tour.

Mario Kart DS

 * North American website bio: "Super Mario Kart vets are sure to recall the twists and turns on this nerve-racking track. Stay focused, or you’ll get muscled into the grass."
 * European website bio: "Sadly there are no sugary treats to be found here but Donut Plains 1 still makes for some pretty sweet racing. The layout is similar to Mario Circuit 1 but ‘donut’ be fooled into letting your guard down, as the trackside mud patches have caught many a driver unawares."

Mario Kart Tour

 * Mario Kart Tour Twitter: "The rustic pastures and rolling hills of the SNES Donut Plains 1 course may appear peaceful at first glance, but these twists and turns will have your kart doing donuts! Here's a tip: hold on tight as you round those corners."