Mario Kart Wii

What it is: 12 racers at one time! 16 new courses and 16 classic courses, ride karts or motorbikes, 5 new and 5 classic battle courses, 20 returning and 5 new characters, play online or console. Miis are often seen at the side of the courses, posters, or even on obstacles, throughout the game. But I miss from the N64 version, the Ghost, All against each other multiplayer, and multiplayer cups.
Characters: Baby Mario, Baby Peach, Bowser, Donkey Kong, Dry Bones, Koopa Troopa, Luigi, Mario, Peach, Toad, Waluigi, Wario, Yoshi. Unlockable: Baby Daisy, Baby Luigi, Birdo, Bowser Jr, Daisy, Diddy Kong, Dry Bones, Dry Bowser, Funky Kong, King Boo, Rosalina, Toadette, Mii.
New Wii Courses
1. Flower Cup: Luigi Circuit, Moo Moo Meadows, Mushroom Gorge, Toad's Factory.
2. Mushroom Cup: Mario Circuit, Coconut Mall, DK's Summit, Wario's Gold Mine.
3. Star Cup: Daisy Circuit, Koopa Cape, Maple Treeway, Grumble Volcano.
4. Special Cup: Dry Dry Ruins, Moonview Highway, Bowser's Castle, Rainbow Road.
Retro Courses
5 Shell Cup: Peach Beach (DD), Yoshi Falls (DS), Ghost Valley 2 (Super), Mario Raceway (64).
6. Banana Cup: Sherbet Land (64), Shy Guy Beach (SC), Delfino Square (DS), Waluigi Stadium (DD).
7. Leaf Cup: Desert Hills (DS), Bowser Castle 3 (SC), DK's Jungle Parkway (64), Mario Circuit (DD).
8. Lightning Cup: Mario Circuit 3 (Super), Peach Gardens (DS), DK Mountain (DD), Bowser's Castle (64).
Battle Courses - New Wii tracks
1. Block Plaza, 2. Delfino Pier, 3. Funky Stadium, 4. Chain Chomp Roulette, 5. Thwomp Desert.
Retro Battle Courses - Classic Tracks
1. Battle Course 4 (Super), 2. Battle Course 3 (SC), 3. Skyscraper (64), 4. Cookie Land (DD), 5. Twilight House (DS).
New Items Wii: 1. Mega Mushroom, 2. POW Block, & 3. Thunder Cloud.
Unlock: 4 Cups (16 Tracks), 12 Characters, 9 Bikes, & 10 Karts.
1. Star Cup: Win at least 3rd place in Flower Cup & Mushroom Cup.
2. Special Cup: Win at least 3rd place in Star Cup.
3. Leaf Cup: Win at least 3rd place in Banana Cup & Shell Cup.
4. Lightning Cup: Win at least 3rd place in Leaf Cup.
At the 50cc Level
5. King Boo: Win Star Cup.
6. Piranha Prowler Kart (large): Win the Special Cup.
7. Super Blooper Kart (medium): Get a "One Star" rank or better in the Leaf Cup.
8. Diddy Kong: Complete all Retro Cups.
9. Baby Daisy: Get a "One Star" rank or better in all cups.
10. Tiny Titan Kart (small): Get a "One Star" rank or better in all Retro Cups. Alternately, get 50 Wi-Fi wins.
At the 100cc Level
11. Twinkle Star Bike (large): Win the Star Cup.
12. Mii (Outfit A): Win the Special Cup.
13. Rally Romper Kart (medium): Get a "One Star" rank or better in the Mushroom Cup.
14. Dry Bones: Win the Leaf Cup.
15. Rapide Bike (medium): Win the Lightning Cup.
16. Bowser Jr.: Get a "One Star" rank or better in all Retro Cups.
17. Nitrocycle (medium): Get a "One Star" rank or better in all Wii Grand Prix Cups.
At the 150cc Level
18. Quacker Bike (small): Win the Star Cup.
19. Daisy: Win the 150cc Special Cup.
20. Royal Racer Kart (medium): Win the 150cc Leaf Cup.
21. Dragonetti Kart (large): Win the 150cc Lightning Cup.
22. Dry Bowser: Get a "One Star" rank or better in all 150cc Wii Cups.
23. Aero Glider Kart (large): Get a "One Star" rank or better in all 150cc Retro Cups.
24. Mirror mode: Win all 150cc Cups to unlock Mirror mode.
Mirror Mode
25. 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.
26. Dolphin Dasher Bike (medium): Win the Mirror Star Cup.
27. Phantom Bike (large): Win the Mirror Special Cup.
28. Bubble Bike (small): Win the Mirror Leaf Cup.
29. Blue Falcon Kart (small): Win the Mirror Lightning Cup.
Time Trials
30. Kamek (small): Defeat all the Nintendo ghosts in the Star Cup.
Play on Different Courses in Time Trials
31. Magikruiser Bike (small): 8 courses, Birdo: 16 courses, Toadette: all 32 courses.
Expert Staff Ghost - Time Trials (win by 7 seconds)
34. Funky Kong: Unlock 4 Expert Staff Ghosts. Baby Luigi: Unlock 8, Torpedo Bike (large): Unlock 12, B Dasher Mk 2 Kart (medium) & Glory Kart (medium): Unlock 24, Mii (Outfit B): Unlock all 32.
Other Tips & Surprises
41. 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.
42. 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.
43. Golden Wii Wheel icon: After using the Wii Wheel extensively in all modes, a golden Wii Wheel will appear next to your name when you go online.
44. Quick Start: When the countdown starts wait till the 2 starts to disappear and then press and hold the 2 button. So the 2 must still be visible but disappearing.This will give you a boost at the start of the race.
45. Boost when recovering from a fall: When you fall into something, such as water or falling from rainbow road, when you land, if you hit 2 at the moment you hit the ground, you get a temporary boost.
46. More than one person can be the same character: First, make P1 choose the character you both want to be. Then unselect the character and move off of it. Move P2 over, and select the character. Go back one screen, then go into the character select again. You should both be on the same character. Both of you select the character. Do whatever you want from there on.
47. Defending POWs: If you flick upward your steering wheel or Wii remote, as soon as your hear the third POW, you will spin and lose your item but maintain your speed. Also works if you are off the ground (not jumping) from something such as a ramp.