Secret - Turbo Boost After Lakitu Retrieval | |
| If you fall off the track or get stuck underwater 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 onto the track again, then press the acceleration at that exact moment and you'll get a turbo boost if you timed it correctly. | |
Secret - Turbo Boost at Start of Race | |
| To get a turbo boost at the start of a race, do not hold the acceleration button down prior to the race starting. Wait until just after the number 2 in the countdown disappears, then hold A. If done right, you will receive a turbo boost as soon as the race starts. | |
Unlockable - Unlockable Characters and items | |
| Character - Daisy | Get a Gold Trophy on every cup in Retro Grand Prix on 50cc |
| Character - Dry Bones | Get a Gold Trophy on every cup in Nitro Grand Prix on 50cc |
| Item - 3rd kart for all characters | Get a Gold Trophy on every cup in Nitro Grand Prix on 100cc |
| Character - Waluigi | Get a Gold Trophy on every cup in Retro Grand Prix on 100cc |
| Item - Choose from 7 karts for each character | Get a gold trophy in every cup in Nitro Grand Prix on 150cc |
| 150cc Mirror Mode | Finish 150cc Retro Class with Gold trophies on every cup |
| Unlock R.O.B. as a racer | Finish either 150cc Mirror Mode Class with Gold Trophies on all cups |
| Unlock "Mission 7" in Mission Mode | Get at least a 1-star ranking on all levels of every mission in Mission Levels 1-6 |
| Item - Choose from any kart for each character | Get a gold trophy in every cup in the Grand Prix on 150cc mirror that you didn't use to unlock R.O.B. |
Unlockable - Unlockable Cups | |
| Star Cup | Get Gold on Mushroom Cup and Flower Cup |
| Leaf Cup | Get Gold on Shell Cup and Banana Cup |
| Special Cup | Get Gold on Star Cup |
| Lightning Cup | Get Gold on Leaf Cup |
Unlockable - Alternate Title Screen | |
| Alternate Title Screen | Finish all classes with gold trophies on all cups |
Unlockable - Alternate Ending Screen | |
| Alternate Ending Screen | Finish all classes with gold trophies on all cups (including mirror mode) |
Unlockable - Staff Ghost Times - Nitro Cups | |
| Figure-8 Circuit | 1:36:481 |
| Yoshi Falls | 0:57:677 |
| Cheep Cheep Beach | 1:43:654 |
| Luigi's Mansion | 1:59:357 |
| Desert Hills | 1:31:262 |
| Delfino Square | 1:54:601 |
| Walugi Pinabll | 2:23:288 |
| Shroom Ridge | 2:05:123 |
| DK Pass | 2:14:607 |
| Tick-Tock Clock | 1:54:903 |
| Mario Circuit | 1:56:533 |
| Airship Fortress | 2:07:748 |
| Wario Stadium | 2:14:868 |
| Peach Gardens | 1:52:989 |
| Bowser Castle | 2:19:661 |
| Rainbow Road | 2:16:246 |
Unlockable - Staff Ghost Times - Retro Cups | |
| Mario Circuit 1 | 0:50:688 |
| Moo Moo Farm | 1:17:751 |
| Peach Circuit | 1:12:011 |
| Luigi Circuit | 1:29:759 |
| Donut Plains 1 | 1:08:027 |
| Frappe Snowland | 2:08:781 |
| Bowser Castle 2 | 1:52:258 |
| Baby Park | 0:50:920 |
| Koopa Beach 2 | 0:54:847 |
| Choco Mountain | 2:15:571 |
| Luigi Circuit | 1:46:581 |
| Mushroom Bridge | 1:30:600 |
| Choco Island 2 | 1:01:620 |
| Banshee Boardwalk | 2:14:403 |
| Sky Garden | 1:44:400 |
| Yoshi Circuit | 1:48:793 |
Unlockable - Earn a star for your nickname | |
| Starred nickname | Beat all cups in all modes with 1-star rating or better |
| Have two stars next to your name on wifi. | Get a two star rating on all prixs. |
| Have three stars next to your name on wifi. | Get a three star rating on all prixs. |
