How do you get the three legendary in Pokemon shiny gold?

In Pokémon Shiny Gold, you can obtain the three Legendary Pokémon (Raikou, Entei, and Suicune) in the following locations:

* Raikou: After obtaining the Rainbow Pass and defeating the Elite Four, head to the Power Plant. When you enter the Power Plant, you will see Raikou. Speak to Raikou to initiate a battle and potentially find it in a shiny form.

* Entei: After obtaining the Rainbow Pass and defeating the Elite Four, head to Mt. Mortar. When you enter Mt. Mortar, you will see Entei. Speak to Entei to initiate a battle and potentially find it in a shiny form.

* Suicune: After obtaining the Rainbow Pass and defeating the Elite Four, head to the Tin Tower. When you enter the Tin Tower, you will see Suicune. Speak to Suicune to initiate a battle and potentially find it in a shiny form.

Note: The Legendary Pokémon have a low chance of appearing in a shiny form, so you may need to reset the game multiple times to encounter a shiny Legendary.