How to unlock all Mario Kart Wii secret characters, bikes, karts and more (guide)

Take the following steps to unlock each of the 14 secret characters in Mario Kart Wii.

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.
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 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 the 100cc Mushroom Cup. 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.

* Winning a Cup means getting first place.
** Expert Staff Ghost Data itself is unlocked by beating a regular staff ghost by 7 seconds.

But there’s much more to be unlocked in Mario Kart Wii. The following lists show the rest of the unlockables:

Bonus bikes
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
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.

Bonus Cups
Successfully complete the indicated task to unlock the corresponding Cup:

Star Cup: Successfully complete the Flower Cup with a trophy. You must also get a trophy in the Mushroom Cup.
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.

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

Expert ghosts
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
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
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
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.

Profile name stars
You can add a star next to your profile name on the results screen and the Wi-Fi races by completing all Grand Prix races with a certain rank:

One star profile name: Earn a “One Star” rank in all Grand Prix races.
Two star profile name: Earn a “Two Star” rank in all Grand Prix races.
Three star profile name: Earn a “Three Star” rank in all Grand Prix races.

To verify, watch a video of someone racing around with most character unlocked:

Big thanks to Joe for the tips, picture via Wiinintendo.

I used this myself and hope it’s helpful to someone else.

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