Double Battle (Battle Mode)

Double Battle (Japanese: ダブルバトル Double Battle) is a battle mode introduced in Generation III. As the name suggests, in Double Battle mode, players will battle in Double Battles, with two Pokémon sent out at any one time.

Double Battle mode is found at the Pokémon Cable Club Colosseum in Generation III and the renamed Pokémon Communication Club Colosseum in Generation IV.

Quotes
Pokémon Center Receptionist
 * "Double Battle is for two Trainers with two or more Pokémon each."
 * "Each Trainer will send out two Pokémon to battle at a time."

Rule sets available

 * No Restrictions - Players can have up to six Pokémon on their teams.
 * Standard Cup - Players have three Pokémon on their team, Lv. 50 and lower.
 * Fancy Cup - Players have three Pokémon on their team, Lv. 30 and lower, and the combined levels must not exceed 80. Each Pokémon is to have a height of no more than 6 feet and 7 inches (2 meters) and weigh no more than 44.1 lbs (20 kilograms).
 * Little Cup - Players have three Pokémon on their team, Lv. 5 and lower, and no evolved Pokémon are allowed.
 * Light Cup - Players have three Pokémon on their team, Lv. 50 and lower, each weighing no more than 220.5 lbs (100 kilograms).
 * Double Cup - Players have four Pokémon on their team and otherwise follow the Standard Cup rules.