Battling against wild Pokémon and each other, Kool Yoshi and Red's Pokémon became stronger. One day, they found Blue struggling along, because his water Pokémon was weak against the grass and poison types in the forest. Smiling, Kool Yoshi and Red continued ahead. Kool Yoshi had caught a Pidgey and Red caught a Rattata with Pokéballs they brought along. Looking carefully, Red saw a Pikachu hopping out from the bushes.

"Go Rattata!" he shouted, throwing out the Pokéball containing Rattata, "Use Bite attack!" Rattata bit down hard on Pikachu who cried out. Red threw a Pokéball and caught Pikachu. Kool Yoshi quickly translated what the Pikachu had said and knew they had to get out of Viridian Forest.

"Come on, Red, we've gotta get outta here!" said Kool Yoshi, tugging on Red's arm. They started running, but a swarm of Beedrill appeared behind them.

"Aaahhh!!! Beedrill!!!" yelled Red. While running, they passed Blue who stood there in confusion. The Beedrill slowed down and stung him instead.

"Ouch!!! Hey stop that! Oww!!! Shoo! Go away!" shouted Blue as he tried in futile attempts to get away from the Beedrill.

"Ha ha!!! He deserves it!!!" laughed Red.

"Wait. We have to help him," said Kool Yoshi, "He won't be able to defend himself with his Squirtle."

"You're right," agreed Red, "Go, Charmander!!! Use Ember!"

"Bulbasaur, go!!!" shouted Kool Yoshi, "Sleep Powder, now!"

Charmander's Ember kept the Beedrill away from Blue while Bulbasaur's Sleep Powder rendered them asleep.

"Pokéball, go!" called Kool Yoshi, throwing a Pokéball. The Pokéball hit one of the sleeping Beedrill and closed upon it. It wiggled a few times before stopping and Kool Yoshi picked it up. "Come on, Red. Let's go."

The two Pokémon trainers headed out of the treacherous Viridian Forest and saw Pewter City up ahead.