What if Ash caught Spearow?

"Alright!" Ash cheered as Pikachu electrocuted the incoming Spearow, which let out a cry of surprise as it fell to the ground. Eyes widening in thought, Ash quickly reached to his belt and grabbed an empty poke'ball, "This is my chance! Go poke'ball!" He exclaimed, throwing the empty poke'ball towards the fried bird pokemon.

"Spearow!" The wild pokemon cried out as the poke'ball hit it, sucking it inside before it began shaking violently. Ash held his breath as he watched the poke'ball rock backwards and forwards violently until it came to a halt, the red button flashing, signalling a successful capture.

"I-i did it...I did it!" Ash shouted loudly as he stared at the poke'ball, his eyes going wide as he ran to grab the poke'ball and held it up in the air, "Alright! I caught a Spearow!" He exclaimed, holding the poke'ball out in front of him proudly before looking up at Pikachu, who was watching Ash from hsi place in the tree, "You did great Pikachu!" Pikachu raised a brow at the boy, not really believing that he had caught the pokemon - the electric mouse had gained some respect for the boy who claimed to be his trainer.

From here on out, Ash would go onto catch many more pokemon, with Pikachu now obeying him thanks to the respect he had gained upon catching Spearow - pokemon he would catch would include a Pidgey and a Rattata, as well as Weedle Caterpie, Mankey and even a Sandshrew. Ash would continue his adventure throughout Kanto, catching more and more pokemon whilst training harder than he had ever done before.

He would arrive at Pewter City without running into Flint and would get the boulder badge thanks to a combination of all his pokemon's work. Brock would not accompany Ash as Flint would not be there to allow the older boy to leave, and since Pikachu started to listen and Ash caught the Spearow before it could call for help, he never ran into Misty.

Ash would continue onto Cerulean city, getting there before the other trainers and defeating the three sisters easily with Pikachu and his newly evolved Fearow. Coming across AJ's gym, Ash would dominate him with his evolved pokemon before continuing to catch and train more and more pokemon as he continued collecting gym badges:

The pokemon league would come around, with Ash having a team consisting of Pikachu, Butterfree, Fearow, Squirtle, Bulbasaur and Charizard: this time around, Ash would defeat Richie, having kept Charizard's respect this time around, and would go on to win the entire league.