After saving Silph Co. from Team Rocket, you can enter the gym of Saffron City. This gym has warp panels and trainers in some rooms. Keep using the warp panels until you reach the gym leader. Sabrina uses Psychic type Pokémon. Mr. Mime will combo with Barrier and Light Screen to make your moves less effective against it. Venomoth will combo with Stun Spore to paralyze then Psybeam to confuse. Alakazam will use Reflect to power down physical attacks then use Recover when running out of HP. After winning, you’ll receive the Marsh Badge and a TM46 (Psywave). Psywave will inflict a random amount of damage on the opponent. ... https://www.youtube.com/watch?v=OdnAE0OQ3z0

The “K” letter is on the rope by the first Klasp. Board one long rope and turn left to find a B Barrel. The first bonus area has 30 stars over the ropes. Collect them all within 25 seconds for the B Coin. Back in the main area, ascend with some ropes but watch for the Klasps. After jumping off by bananas, you’ll find the “O” letter. Go through an opening left and throw an iron keg to backstab Koin for the DK Coin. Ascend some more and you’ll find the Star Barrel. Use the arrow barrel to ascend and jump off the ledges to continue climbing. Go through an opening right before the next arrow barrel and you’ll find the “N” letter. Throw Dixie to the higher edge and you’ll find a B Barrel. The first bonus area has rope with Klasps on them. Ascend and reach the top within 20 seconds for the B Coin. Back in the main area, descend a few notches and ascend once more. After a DK Barrel, use the next arrow barrel to ascend. Climb up some more and descend for the “G” letter. Go down some more and you’ll find the goal. ... https://www.youtube.com/watch?v=KolQQSh7xyQ