Pipe Plaza Glitch
In the balloon battle mode on the Pipe Plaza map. if an enemy hits you into a pipe with their weapon, and you are thrown through the pipe then you will not lose a balloon. Instead, you will come out of the pipe with stars around you and it will appear as though you just drove through the pipe.
Contributed By: vulcandragon.
To unlock everything, just win Gold on every Cup in every difficulty.
Unlockable How to Unlock All Cup Tour (All 4 Cups in one) Finish the Special Cup in 150CC Alternative "Thanks for Playing" Screen Earn Gold trophies for all cups in all race classes Alternative Start Screen Earn Gold trophies for all cups in all race classes Barrel Train (Diddy Kong's Kart) Finish the Star Cup in 150CC Bloom Coach (Daisy's Kart) Finish the Flower Cup in 50CC Boo Pipes (King Boo's Kart) Finish the Special Cup in Mirror Mode Bullet Blaster (Bowser Jr.'s Kart) Finish the Special Cup in 50CC Green Fire (Luigi's Kart) Finish the Mushroom Cup in 50CC King Boo, Petey Piranha, Piranha Pipes (Petey Piranha's Kart) Finish the Star Cup in Mirror Mode Luigi's Mansion (Battle Mode Arena) Finish the Mushroom Cup in 150CC Mirror Mode (Selectable at the CC selection) Finish the All Cup Tour in 150CC Para Wing (Koopa Paratroopa's Kart) Finish the Star Cup in 50CC Parade Kart (Belongs to Toadsworth, but he doesn't race) Finish the All Cup Tour in Mirror Mode Rattle Buggy (Baby Luigi's Kart) Finish the Mushroom Cup in 100CC Special Cup (Wario Colosseum/Dino Dino Jungle/Bowser's Castle/Rainbow Road) Finish the Star Cup in 100CC Tilt-A-Kart (Battle Mode Arena) Finish the Flower Cup in Mirror Mode Toad, Toadette, Toad Kart (Toad's Kart) Finish the Special Cup in 100CC Toadette Kart (Toadette's Kart) Finish the Mushroom Cup in Mirror Mode Turbo Birdo (Birdo's Kart) Finish the Flower Cup in 150CC Waluigi Racer (Waluigi's Kart) Finish the Flower Cup in 100CC
Contributed By: CaptainDrakesGhost.
To unlock the staff ghost for each time trial track, beat the following times. Be sure that the "Time Trial Ghost" option in the options is turned on at the time of completion.
Unlockable How to Unlock Baby Park Ghost Beat a time of 1:14.000 Bowser's Castle Ghost Beat a time of 2:47.000 Daisy Cruiser Ghost Beat a time of 1:55.000 Dino Dino Jungle Ghost Beat a time of 2:03.000 DK Mountain Ghost Beat a time of 2:15.000 Dry Dry Desert Ghost Beat a time of 1:53.000 Luigi Circuit Ghost Beat a time of 1:29.000 Mario Circuit Ghost Beat a time of 1:44.000 Mushroom Bridge Ghost Beat a time of 1:34.000 Mushroom City Ghost Beat a time of 1:53.000 Peach Beach Ghost Beat a time of 1:23.000 Rainbow Road Ghost Beat a time of 3:19.000 Sherbet Land Ghost Beat a time of 1:28.000 Waluigi Stadium Ghost Beat a time of 2:02.000 Wario Colloseum Ghost Beat a time of 2:24.000 Yoshi's Circuit Ghost Beat a time of 2:02.000
Contributed By: Deathborn 668.
Japanese Contest code
After completing a Time Trial race (When it says Retry, Change Track, etc,), press L,R,L,R,X,Y,X,Y,Z. The code that pops up was for a Japanese contest. Totally useless, but it's interesting that they forgot to take that out.
Contributed By: Gamecube_Gamer.
Mario Circuit Goomba Boosts
If the Goombas on Mario Circuit are hit with a turtle shell, they will be squished into the ground and a boost will fly off them. If a thunderbolt is used on the course, it will squish them all and there will be several boosts lying in that area. It doesn't work the same as the mushroom cars; if you hit a goomba they stay solid and you spin around a bit. Turtle shells are you're best bet.
Mushroom City Quick Boosts
As you may have noticed on the Mushroom City course, among the traffic are vehicles shaped/colored like the Mushroom items. If you run into them, you don't spin out like you would against other cars; rather a Mushroom is thrown from the back for you to collect/use for a quick boost!
Rainbow Road Falling Stars
You may have noticed there are a lot of stars on Rainbow Road. And many of them fall. And some of those that fall fall on the track. Where those stars fall, they turn into star items, just sitting there. Some of these are dangerously close to the edge, but if you can get one (especially when you're already near the front and there's no other way to get one) it's a nice bonus. Only problem is that they're the same color as banana peels, so be sure before you run over something yellow!
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 just before you touch the track again, then press the acceleration and you'll get a turbo boost if you timed it correctly.
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