Mario Kart 7

After the musical note section on the big turn leading to the finish line,you will notice a big tamboriene and a red and white striped jump lege. If you take a very sharp turn you will land on the tambourine and if you can make a tubo boost jump and you will get a speed boost to help you lead the race.

View the true ending.

When you receive mario kart 7 data from someone via streetpass, go to the Mario Kart Channel to access the streetpass data which includes the kart customization that person set on his channel profile. Select Grand Prix to race in a Prix that person set up on his profile. Place ahead of that person's mii character and if that person choose a kart customization that includes a part that you don't have yet, you will unlock that part. For example, if the person you street passed used a kart body you didn't unlock yet and you beat his/her mii in his Grand Prix, you will unlock that kart body for your own use.

Complete the indicated task to unlock the corresponding gold part.

Gold Glider: Connect with 100 people via StreetPass; alternately, collect 10,000 coins.
Gold Standard Body: Earn a VR higher than 10,000 points; alternately collect 20,000 coins.
Gold Steering Wheel: Play 100 recent matches and use the first person gyro controls 80% of the time.
Gold Wheels: Win all Cups on 50cc, 100cc, 150cc and Mirror modes with at least a "1 star" rank.

When your coming up to a ramp with a mushroom hit the R button and press up to go down,down to go up,right to go right and left to go left.

Complete all 150cc Cups in first place or "Gold" rank.

Reach the part with the bouncing musical notes near the end of the Music Park Track. Make the ground around them tremble. If the notes bounce your kart, it will cause a loss of speed. If timed correctly, press R at the exact moment when you are bounced to get a speed boost.

Once you have the indicated number of coins you will unlock a random body, glider, or set of wheels. Coins are earned 10 per race (40 per cup).

Random Part 1: 50 coins
Random Part 2: 100 coins
Random Part 3: 150 coins
Random Part 4: 200 coins
Random Part 5: 250 coins
Random Part 6: 300 coins
Random Part 7: 400 coins
Random Part 8: 500 coins
Random Part 9: 600 coins
Random Part 10: 700 coins
Random Part 11: 800 coins
Random Part 12: 900 coins
Random Part 13: 1,000 coins
Random Part 14: 1,200 coins
Random Part 15: 1,400 coins
Random Part 16: 1,600 coins
Random Part 17: 1,800 coins
Random Part 18: 2,000 coins
Random Part 19: 2,500 coins
Random Part 20: 3,000 coins
Random Part 21: 3,500 coins
Random Part 22: 4,000 coins
Random Part 23: 4,500 coins
Random Part 24: 5,000 coins

After Lakitu appears to place you back on the track, wait until your kart is dropped. Press R precisely when you are dropped onto the track then press Y or A. If timed correctly, you will resume with a turbo boost.

When the number "2" disappears at the starting line, hold A or Y. If done correctly, you will get a turbo boost when the race starts.