Pokemon Ruby/Sapphire - In-Depth Guides

• Various information
• Glossary
• Base Stats
• Rareness and Base EXP
• Experience Table
• Trainers
• Catch Rate Formula
• Locations (Ruby version) (Land, Water and Rock Smash, Fishing)
• Locations (Sapphire version) (Land, Water and Rock Smash, Fishing)
• Berries, Berry Blender and PokeBlocks
• Pokemon Contest
• Battle Tower
• PokeBlock Generator

Battle System

• Attack List
• Attack Explanations
• Abilities
  • Pickup
• Damage Calculation
• Attack Timing Process
• Held Items

Others

• Pokemon Battle System Implementation

Also see the Gold/Silver Guides.