Pewter Gym is based in Pewter City of Kanto, led by Brock the Rock-type specialist. It is the first gym that a new player challenge.
After defeating the gym leader Brock, players will be awarded the Boulder Badge. In addition, Route 3 will be unlocked which allows player to move on to Mt Moon and later to Celadon City.
- Camper Liam (72 hours cooldown before battling again)
- Gym Leader Brock (30 minutes cooldown before battling again)
- Note: Gym Leader cannot be re-battled again once they are defeated.