Hur låser du upp viridian city gym?

1. Besegra Brock, gymledaren i Pewter City.

2. Besegra Misty, gymledaren i Cerulean City.

3. Besegra Erika, gymledaren i Celadon City.

4. Besegra Lt. Surge, gymledaren i Vermilion City.

5. Besegra Sabrina, gymledaren i Saffron City.