Nugget Bridge is a bridge located on Kanto Route 24. It features a gauntlet of trainers who must be defeated to reach the end of the bridge, though they do not have to be defeated all in one go.
At the start of the bridge in Kanto based generations, there will be a fight with the rival.
There are five trainers who have to be defeated: Bug Catcher Cale, Lass Ali, Youngster Timmy, Lass Reli and Jr Trainer/Camper Ethan. At the end there is a Team Rocket grunt who rewards the traveler with a nugget before trying to recruit them, battling them if they refuse to join.
In Johto based games, there is only one Team Rocket grunt on the bridge who has to be defeated to find out where he hid the machine part for the Power Plant.