one day. luigi and some other characters (includeing miis) were watching TV and it said theres a race and the prize is the gold all cups trophy. mario was asleep and missed it.
karts and owner (karts can be drived by any character)Edit
luigi greens (luigi)
wiggler express (wiggler)
jungle barrels (kongs)
baby buggy (babys)
miners kart (wario)
death flame (bowser)
egg 1 (yoshi)
koopa train 2849 (koopa troopa)
miis universe kart (any)
1 mii is unlocked every day chosen randomly. guest miis are playable from the start. they are A B C D and E. being send to the race by luigi talking to them. (needs streetpass in 3ds/2ds version).
1-up mushroom (survivie roll only)
lucky hat (lucky 7)
this only happens if you fall of. you have to roll a dice with 5 bowser faces and 1 1-up muishroom
if you get a bowser face. you fall of and you have to watch other players and computers play.
if you get a 1-up mushroom. lakitu will come and rescue you and you will still be alive