Mario Kart : Double Dash!!
Hold down the "R" button while turning. Release it when the sparks turn blue.
Characters special items
Here are the special items for each character.
Birdo/Yoshi: Egg. acts like red shell by homing in on closest kart. When hits person egg brakes open releasing stars, shells, or musrooms.
Diddy kong/Donkey Kong: Big Bannana. When someone hits this big bannana breaks into three little ones.
Mario/Luigi: Fireballs. Sends 5 fireballs forward or back(wherever you throw.) and makes the person on the back of the kart it hits start on fire.
Wario/Waluigi: Bomb ombs. Gets a bomb omb and blows up after a certain time or when someone go to close to it.
Bowser/Bowser Jr: Spiky shell. Sends a giant spiked Bowser shell ahead or in back of you.
Peach/Daisy: heart sheild. Puts a heart shield around the kart. When you run into an item or get hit by an item you take it.(like you run into a bannana then it will then go in your hands so you can throw it at other people.)
Toad/toadette: Gold musroom. Just like Mario Kart 64 the golden musroom acts like a musroom except you can use a lot more time like 10 or something.
Baby Mario/Baby Luigi: Chain chomp. Sends a chain chomp forward and any one gets hit gets hurt. but if you get hit while holding him he runs away. Or if you hold him for the maximum time he still runs away.
Koopa/paratroopa: Three shells. Gets either three green shells or three red shells to throw at opponents.
Mushroom short cut (Yoshi Circuit)
In order to pull this short cut off you must have a light weight kart with atleast one mushroom in your arsenal. When you are coming around the corner just before you leave Yoshi's nose you will see a gap in the fence. This gap allows you to drive of the road, over a cliff. If you activiate your mushroom just after you leave the cliff you will be propelled across the air into a tunnel, which can cut almost a whole second or more off your time.
To unlock the staff ghosts, you must beat these times (special cup is unknown):
Luigi Circuit - 1'29"000
Peach Beach - 1'23"000
Baby Park - 1'14"000
Dry Dry Desert - 1'53"000
Mushroom Bridge - 1'34"000
Mario Circuit - 1'44"000
Daisy Cruiser - 1'55"000
Waluigi Stadium - 2'02"000
Sherbet Land - 1'26"000
Mushroom City - 1'53"000
Yoshi Circuit - 2'02"000
DK Mountain - 2'15"000
To get a boost, repeatedly tap A at the start of the countdown.
Will all cups with a "Gold" rank under all difficulty settings.
Win the Flower Cup in the 150cc class.
Alternate opening and ending screens
Win the All Cup Tour in mirror mode.
Win the All Cup Tour in mirror mode.
Win the Mushroom Cup in the 50cc class.
Win the Flower Cup in the 100cc class.
Win the Mushroom Cup in mirror mode.
Petey Piranha's Kart
Win the Star Cup in mirror mode.
Win the Special Cup in the 100cc class.
Unlocking new Karts in Grand Prix
Win a Grand Prix in first place to unlock a new Kart. There is a bonus Kart in each cc class and Grand Prix that you can win (nine total).
Koopa Paratroopa's Kart
Win the Star Cup in the 50cc class.
Diddy Kong's Kart
Win the Star Cup in the 150cc class.
Win the All Cup Tour in the 150cc class.
All Cup Tour
Win the Special Cup in the 150cc class to unlock the All Cup Tour, which is a combination of all of the four default cups.
Tilt-A-Kart battle arena
Win the Flower Cup in mirror mode.
Win the Flower Cup in the 50cc class.
Win the Star Cup in the 100cc class.
Bowser Jr.'s Kart
Win the Special Cup in the 50cc class.
Baby Luigi's Kart
Win the Mushroom Cup in the 100cc class.
King Boo's Kart
Win the Special Cup in mirror mode.
Luigi's Mansion battle arena
Win the Mushroom Cup in the 150cc class.
Waluigi Racer - Win the Flower Cup at 100cc to unlock Waluigi's kart.
Turbo Birdo - Win the Flower cup at 150 cc to unlock Birdo's kart.
Bloom Coach - Win the Flower cup at 50 cc to unlock Daisy's kart.
Green Fire - Win the mushroom cup at 50 cc to unlock Luigi's kart.
Battle Buggy - Win the Mushroom cup at 100 cc to unlock Baby Luigi's kart.
Bullet Blaster - Win the special cup at 50 cc.
Para Wing - Win the Star cup at 50cc.
All Cup Tour - Win all cups at 150cc.
Special Cup - Win the Mushroom, Flower, and Star Cups at 100cc.
Toad and Toadette Duo - Win the special cup at 100 cc to unlock these two characters.
Grand Slam Cup - Win the Mushroom, Flower, Star, and Special Cups at 150cc.
Luigi's Mansion Battle Stage - Win the Mushroom cup at 150 cc to unlock this extra stage for multiplayer battle