Note: You might encounter Vblank issues with wild Pokémon, resulting in Method H-2 or H-4, but this is a rare occurrence.
Intro
Ruby and Sapphire may have fewer tips than FRLG or Emerald due to the Live Battery method, but there are still valuable insights to share.
Speeding Up RNG Advances
Ruby and Sapphire have limited options for speeding up RNG advances compared to Emerald, Fire Red, or Leaf Green. However, like any Gen 3 game, being in a battle doubles the RNG advancement speed, which is useful for wild Pokémon RNG.
Painting RNG
Although it's not very useful for Live Battery, the Painting method does work in Ruby and Sapphire. As it's more advanced, it will be covered in a separate guide.