Mario Kart Wii - Platform: Wii

Bonus Cups:
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Successfully complete the indicated task to unlock the corresponding Cup:
Star Cup: Successfully complete the Flower Cup with a trophy. 
Special Cup: Successfully complete the Star Cup with a trophy. 
Leaf Cup: Successfully complete the Banana Cup with a trophy. 
Lightning Cup: Successfully complete the Leaf Cup with a trophy. 

Bonus characters:
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Successfully complete the indicated task to unlock the corresponding character:
Baby Daisy: Get a "One Star" rank or better in all 50cc cups. 
Baby Luigi: Unlock eight Expert Staff Ghost Data in Time Trials mode. 
Birdo: Play 16 different courses in Time Trials mode. Alternately, get 250 
Wi-Fi wins. 
Bowser Jr.: Get a "One Star" rank or better in all 100cc Retro Cups. 
Daisy: Win the 150cc Special Cup. 
Diddy Kong: Successfully complete all 50cc Retro Cups. 
Dry Bones: Win the 100cc Leaf Cup. 
Dry Bowser: Get a "One Star" rank or better in all 150cc Wii Cups. 
Funky Kong: Unlock four Expert Staff Ghost Data in Time Trials mode. 
King Boo: Win the 50cc Star Cup 
Mii (Outfit A): Win the 100cc Special Cup. 
Mii (Outfit B): Unlock all 32 Expert Staff Ghost Data in Time Trials mode. 
Rosalina: Get a "One Star" rank or better in all Mirror Mode Retro Cups. 
Alternately, have a saved game file from Super Mario Galaxy and win a number 
of races. 
Toadette: Play on all 32 courses in Time Trials mode. Alternately, get 1,000 
Wi-Fi wins. 

Bonus bikes:
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Successfully complete the indicated task to unlock the corresponding bikes:
  Bubble Bike (small): Win the Mirror Leaf Cup. 
  Dolphin Dasher (medium): Win the Mirror Star Cup. 
  Magikruiser (small): Play on eight different courses in Time Trials mode. 
  Nitrocycle (medium): Get a "One Star" rank or better in all 100cc Wii Grand 
  Prix Cups. 
  Phantom (large): Win the Mirror Special Cup. 
  Quacker (small): Win the 150cc Star Cup. 
  Rapide (medium): Win the 100cc Lightning Cup. 
  Torpedo (large): Unlock 12 Expert Staff Ghost Data in Time Trials mode. 
  Twinkle Star (large): Win the 100cc Star Cup. 

Bonus karts:
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Successfully complete the indicated task to unlock the corresponding karts:
  Aero Glider (large): Get a "One Star" rank or better in all 150cc Retro Grand 
  Prix Cups. 
  B Dasher Mk 2 (medium): Unlock 24 Expert Staff Ghosts. 
  Blue Falcon (small): Win the Mirror Lightning Cup. 
  Cheep Charger (small): Get a "One Star" rank or better in all 50cc Retro Grand 
  Prix Cups. 
  Dragonetti (large): Win the 150cc Lightning Cup. 
  Glory (medium): Unlock 24 Expert Staff Ghost Data in Time Trials mode. 
  Piranha Prowler (large): Win the 50cc Special Cup. 
  Rally Romper (small): Unlock one Expert Staff Ghost Data in Time Trials mode. 
  Royal Racer (medium): Win the 150cc Leaf Cup. 
  Turbo Blooper (medium): Win the 50cc Leaf Cup. 

Mirror mode:
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Win all 150cc Cups to unlock Mirror mode.

Expert ghosts:
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Defeat a normal course ghost with a time at least seven seconds faster to unlock 
the expert ghost for that course.

Alternate title screen and ending sequence:
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Get a "One Star" rank or better in all Cups, including those in Mirror mode to 
unlock an alternate title screen and ending sequence.

Special credits:
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Win all trophies in a class to view the credits and see a congratulations screen 
featuring your Mii with Mario and Peach. Win all Grand Prix Cups to get another 
congratulations screen featuring your Mii with all the racers.

Quick start:
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When the countdown starts, wait until the "2" begins to disappear, then hold 2 
to get a boost at the start of the race.

Quick recovery:
--------------- 
When you fall into an obstacle, press 2 precisely when you land to get a 
temporary boost.


complete crumble volcano under 1 minute:
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Submitted by: liam davies

Manuel needed. When you start turn around and go straight of the course under a ramp. 
When you get back on course, you should be just behind a ramp. Go up to it (not over) 
and turn to your left. There should be a volcano with a question mark on it. Face that 
and click 1 then 2 (keep hold to boost comes up)and shoot to it. Go round it 3 times. 
If your wondering why it's not working, stay on the outside not the inside, and don't 
fall off!!!


When a pow comes up:
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Submitted by: Unknown Cheat

If someone uses the power 'POW' then on the last pow, jump up in the air than you will not 
be able to stop driving, you will go ahead still. (not to know I use it as well) 
Try it you might win !

From Mario Kart Wii hint person.


New Cups:
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Submitted by: zach20

When you beat a cup (not mushroom, shell, special, or lightning)you unlock a new one.


Dodge a POW:
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Submitted by: dontknowwhoiam10

-There will be two "boom" sounds before the actual POW. When the second "boom" occurs, start 
shaking 
your wii remote and don't stop until you see blue circles appear underneath you.
-You need to be drifting manually to do this dodge of a POW. When the actual POW occurs, hit the B 
button.
If you succeed, blue circles will appear instead of blue lines. You may still lose a bit of control, 
But you will NOT slow down.