Obtain Deoxys in Kanto

Obtaining Deoxys

To obtain Deoxys, you must first defeat the Pokémon League and give the Ruby to the scientist on One Island. You can then buy the ticket to Birth Island on Two Island.

With the ticket in hand, go to Vermilion City and take the ferry to Birth Island. There, interact with the stone triangle while always taking the route that requires the fewest steps; if you make a mistake, you must restart the sequence. Deoxys will appear when you complete it correctly.