Mario Kart DS Codes -

Play as Daisy:
Win a Gold trophy on all cups in the Nitro Grand Prix in the 50cc class.

Play as Dry Bones:
Win a Gold trophy on all cups in the Retro Grand Prix in the 50cc class.

Play as R.O.B.:
Win Gold trophies on all cups in the Retro Mirror mode in the 150cc class.

Play as Shy Guy:
Play a Download Play game against another player. Shy Guy can only be used Download Play mode.

Play as Waluigi:
Win a Gold trophy on all cups in the Retro Grand Prix in the 100cc class.

Bonus karts:
Win Gold trophies on all cups in the Nitro Grand Prix in the 100cc class to unlock a third kart for all characters.
Win Gold trophies on all cups in the Nitro Grand Prix in the 150cc class to unlock a total of seven karts for all characters.
Win Gold trophies on all cups in the Nitro Mirror mode in the 150cc class to unlock all karts for all characters. 

Leaf Cup:
Win a Gold trophy on the Shell Cup and Banana Cup to unlock the Leaf Cup for that class.

Lightning Cup:
Win a Gold trophy on the Leaf Cup to unlock the Lightning Cup for that class.

Star Cup:
Win a Gold trophy on the Mushroom Cup and Flower Cup to unlock the Star Cup for that class.

Special Cup:
Win a Gold trophy on the Star Cup to unlock the Special Cup for that class.

150cc mirror mode:
Win all Gold trophies on all cups in the Retro Grand Prix 150cc class.

Mission Mode mission 7:
Get a 1 Star or greater rank on each level of missions 1 through 6.

Alternate title screen:
Win all Gold trophies in all cups and classes.

Alternate ending sequence:
Win all Gold trophies in all cups and classes.

Star next to name:
Win all cups in all classes with a 1 Star or greater rank. A star will appear next to your name in multi-player mode and next to your name on the "Records" screen.

Development team ghost times:
Complete the indicated circuit with a time less than the target to unlock its development team ghost racer, with the corresponding best time.


Nitro Cup: Airship Fortress: 2:10:000 
Nitro Cup: Bowser Castle: 2:20:000 
Nitro Cup: Cheep Cheep Beach: 1:45:000 
Nitro Cup: Delfino Plaza: 1:55:000 
Nitro Cup: Desert Hills: 1:35:000 
Nitro Cup: DK Pass: 2:15:000 
Nitro Cup: Figure-8 Circuit: 1:38:000 (1:36:481 best time) 
Nitro Cup: Luigi's Mansion: 2:00:000 
Nitro Cup: Mario Circuit: 1:57:000 
Nitro Cup: Peach Gardens: 1:53:000 
Nitro Cup: Rainbow Road: 2:17:000 
Nitro Cup: Shroom Ridge: 2:06:000 
Nitro Cup: Tick-Tock Clock: 1:55:000 
Nitro Cup: Walugi Pinabll: 2:24:000 
Nitro Cup: Wario Stadium: 2:15:000 
Nitro Cup: Yoshi Falls: 0:58:000 
Retro Cup: Baby Park: 0:55:000 (0:50:920 best time) 
Retro Cup: Banshee Boardwalk: 2:15:000 
Retro Cup: Bowser Castle 2: 1:53:000 
Retro Cup: Choco Island 2: 1:02:000 
Retro Cup: Choco Mountain: 2:16:000 
Retro Cup: Donut Plains 1: 1:09:000 
Retro Cup: Frappe Snowland: 2:09:000 
Retro Cup: Koopa Beach 2: 0:55:000 
Retro Cup: Luigi Circuit: 1:37:000 (1:29:759 best time) 
Retro Cup: Mario Circuit 1: 0:51:000 
Retro Cup: Moo Moo Farm: 1:18:000 
Retro Cup: Mushroom Bridge: 1:31:000 
Retro Cup: Peach Circuit: 1:13:000 
Retro Cup: Sky Garden: 1:45:000 
Retro Cup: Yoshi Circuit: 1:49:000