Mario Kart 7 Cheats - 3DS

Unlock Characters
Daisy - 1st in Mushroom Cup 150cc.
Honey Queen - 1st in Banana Cup 150cc.
Lakitu - 1st in Lightning Cup 150cc.
Metal Mario - 1st in Special Cup 150cc.
Mii - Place 1st in all cups in one CC level.
Rosalina - 1st in Star Cup 150cc.
Shy Guy - 1st in Shell Cup 150cc.
Wario - 1st in Flower Cup 150cc.
Wiggler - 1st in Leaf Cup 150cc.

Unlock Kart Parts
Random Part 01 - Collect 50 coins.
Random Part 02 - Collect 100 coins.
Random Part 03 - Collect 150 coins.
Random Part 04 - Collect 200 coins.
Random Part 05 - Collect 250 coins.
Random Part 06 - Collect 300 coins.
Random Part 07 - Collect 400 coins.
Random Part 08 - Collect 500 coins.
Random Part 09 - Collect 600 coins.
Random Part 10 - Collect 700 coins.
Random Part 11 - Collect 800 coins.
Random Part 12 - Collect 900 coins.
Random Part 13 - Collect 1,000 coins.
Random Part 14 - Collect 1,200 coins.
Random Part 15 - Collect 1,400 coins.
Random Part 16 - Collect 1,600 coins.
Random Part 17 - Collect 1,800 coins.
Random Part 18 - Collect 2,000 coins.
Random Part 19 - Collect 2,500 coins.
Random Part 20 - Collect 3,000 coins.
Random Part 21 - Collect 3,500 coins.
Random Part 22 - Collect 4,000 coins.
Random Part 23 - Collect 4,500 coins.
Random Part 24 - Collect 5,000 coins.

Unlock Bonuses
Mirror Mode - Finish every Cup in 150cc and get 1st place/Gold on all of them.
New title screen - Watch the true ending.
True Ending - Place first in all cups in all cart classes.

Unlock Kart Parts
Gold Glider - Connect with 100 people via StreetPass or collect 10,000 coins.
Gold Standard (Kart Body) - Obtain a VR higher than 10,000 points or collect 20,000 coins.
Golden Steering Wheel - Play 100 recent matches and use the first person gyro controls 80% of the time.
Golden Wheels - Beat every cup on 50cc, 100cc, 150cc and Mirror Mode and receive a minimum of 1 star ranking for each cup to unlock.
Wooden Wheel - Collect 50 coins total in Grand Prix mode

Turbo Boost After Ramp Jump
Whenever you are about to go off a ramp press the [R] button to jump right when you are at the edge of the ramp for a turbo boost. If done correctly your character will perform a trick midair and you will receive increased speed for a short time.

Turbo Boost at Bouncing Music Notes Section in Music Park Track
Near the end of the Music Park Track there is a segment where these Musical Notes bounce up and down every few seconds. When these Musical Notes bounce they make the ground around them tremble and if they manage to make you bounce it will cause you to lose speed. If you time it correctly and press the [R] Button right when you are bounced you will get a Turbo Boost for a short period of time.

Turbo Boost at Start of Race
To get a turbo boost at the start of a race do not hold the acceleration button down before the countdown starts. Wait until just after the number 2 in the countdown disappears and then hold down the [A] or [Y] button. If done correctly you will receive a turbo boost as soon as the race starts.

Turbo Boost After Lakitu Retrieval
If you fall off the track or get stuck somewhere for more than a couple moments Lakitu comes to pull you out and place you on the track again. When he picks you up, wait until you're dropped then press the acceleration at the exact moment you're dropped onto the track and press on the [Y] or [A] button. Time it right and you'll get a Turbo Boost for a short period of time.

Unlock Kart Parts (Alternate Way)
Beat a streetpassed mii in his/her Grand Prix that uses a part you haven't unlocked.