It allows you to take down certain bosses (and clear certain T.T.
The Acceleration Glitch is a Good Bad Bug that allows you to go faster than your normal top speed.
Thankfully when put into the hands of a computer, he drives at a much lower top speed.
If you unlock T.T., practically every race becomes a joke.
And T.T.? Apart from being a great host and mentor, as a playable character, he broke the game, to say the least.
Also Tiptup, who had slightly higher top speed and slightly lower acceleration and handling, and went on to cameo in Banjo-Kazooie ( where, contrary to this game, he is considerably bigger than Banjo.).
Banjo and Conker both proved to be very popular characters and both went on to star in their own acclaimed games.
Pipsy was used by most people, male or female, because she combined adorable characteristics with a simple and effective style for racing.
Some loved it, while others missed old Tiny and thought fanservicing up a child character was creepy. On the other hand, the new quickstart is a Scrappy Mechanic, the hovercraft is much more difficult to control, Banjo and Conker are lost to the copyright gods, the new voice clips are crappy, and trophy races and battle modes are no longer possible in single player. On one hand, it adds a ton of new content, like new tracks, new modes, new characters, new music, and even new fun doodads to mess with (like the Sound Recorder).
Breather Level: Star City is the final track of Future Fun Land, yet it's a simple course with little to no hazards compared to pretty much every other course in the world.
Breather Boss: Bluey is significantly easier than Tricky is, despite being the second world's boss.