Double battles and co-op

Which trainers can I test by myself?

Bring two conscious Pokémon to challenge a trainer pair. In the HeartGold region data, 14 placed pairs have double-battle encounters. Three you can check by name are listed below.

• Route 37, Twins Tori & Til. Marill and Mareep, both Lv. 16.
• Route 47, Young Couple Duff & Eda. Onix and Cloyster, both Lv. 22.
• Route 47, Double Team Thom & Kae. A second pair on the same route, led by a Lv. 25 Electabuzz.

For a beta report, include the route, trainer names, number of conscious Pokémon you brought, and the turn where the fight behaved unexpectedly.

Can a nearby friend join a battle?

Two-player battles depend on the beta server’s co-op setting. The released system can pair nearby party members on the same map for eligible encounters with at least two opponents. Each player commands their own Pokémon. Gym leaders stay solo under those rules.

In that version, you can throw a ball once one wild Pokémon is left standing. A successful catch goes to the player who threw the ball and ends the battle for both players.