Sonic R has appeared on the failed Sega Saturn and the PC.
You get to choose from a selection of characters, each with their own abilities. Sonic can double jump, Tails can fly (For a limited time), Amy drives a car that can turn into a boat, Knuckles can glide, Eggman can shoot missles, etc. However, that's one of the complaints about the game. Tails's tails make a really annoying spinning sound, Amy's car is too slow, and Eggman needs to pay 10 rings per missle he shoots.
(SPOILER ALERT RIGHT HERE)
The unlockable characters are Eggman, Metal Sonic, Metal Knuckles, Tails Doll, EggRobo, and Super Sonic. Metal Sonic and Knuckles can glide on water, EggRobo is a robot equivalent to Eggman, and Tails Doll......just floats. He has no special powers other than floating....
(SPOILER ENDS HERE)
There are only 5 courses. Wait...just 5? Compared to Mario Kart's 20? Wow. Each course has their own gimmicks, of course.
There aren't really any flaws with the racing, but the CPUs can be cheap at times. There are Chaos Emeralds and tokens hidden in the courses. You have to be in first in order to keep the emeralds, but the tokens have a different story. When it comes to looking for the 5 tokens in each course, it's like playing a 3D scavenger hunt without any enemies. It doesn't matter what place you have to be in when you have all 5. Getting all 5 in a course lets you unlock a character...after beating him to another race.
What is confusing is that once you start up your game after beating it, you'd think everything would still be there, right? Well, it doesn't turn out to be that way. You have to save/load your games every time.
There's also a multiplayer VS mode, along with Time Trials and a new Tag Mode, which is self-explanatory: You play tag with the CPUs or your friends.
The music is kinda weird. In the courses and title screen, women sing the songs.
The character models look kinda weird. Why are Sonic's arms so thin?
Overall, it's not a bad racing game, but it needs improvement.