I wandered around Celadon City after I did some shopping at the local Department Store. I visited the Game Corner and I played the Voltorb Flip game, then I visited the Celadon Condominiums. I headed out to the Pokemon Center after that in order to swap Pokemon on the PC, then I visited the Celadon City Gym. I stepped inside and I battled against the Gym trainers while trying to navigate around the garden-esque maze. I eventually spotted Erika in the back and I challenged her to a battle. I used my Pidgeot against her Victreebel and Tangela and I defeated them both with Aerial Ace attack. I then used Typhlosion's Flamethrower attack against Erika's Jumpluff and Bellossom. I won the Rainbow Badge and the Gym's TM after beating Erika and I left the Gym in a hurry in order to swap Pokemon again for the next part of my journey around Kanto. I saved the game on Route 16 afterwards.