How can you get 99 master balls on Pokemon Red? - Answers

Once you find a masterball save it. When you get to the island for the 7th gym leader beat the gym leader after getting the key and everything. Then fly to the city with the old man who was in your way. Talk to the old man and click no when he asks you if you want to learn how to catch Pokemon. Place you masterball in the 7th slot (it's either 7th or 6th so if it doesn't work try it in 6th. Fly back to the island then surf right on the west edge of the island RIGHT AGAINST IT where if kinda looks your on the shore. Swim up and down. You'll find lots of Pokemon that are really high level or really low level that wouldn't normally be there or you'll find missingno who is a high level but easy to kill. Kill it DO NOT CATCH IT YOUR GAME WILL CRASH! Then check you bag and the one in 7th (or 6th) will have a weird sign on it... giving you almost infinite masterballs, rare candies or anything you want.