"Huh!?"
Everyone was surprised by Raichu's transformation.
And Pachirisu realised that he looks really similar to Mega Raichu X. He felt like there was some difference, but he couldn't really tell exactly what.
"Pachi!"
Pachi congratulated Raichu.
Ash felt a deep connection with Raichu. As if he could feel what Raichu is feeling.
Raichu is unsure, afraid of the transformation.
"Raichu! Everything is fine!"
Ash's feelings resonated with Raichu, and Raichu relaxed and became more confident.
"Raichu!"
"Now, use Thunderbolt!"
"RaiiiiiiiCHUUUUUUUUUU!"
A really powerful Thunderbolt hit Pachirisu.
It did exactly 0 damage.
Pachirisu sweat-dropped. He guessed that Ash forgot about his ability in excitement.
Well, now it's time to test Ash-Raichu.
"Raichu! Volt Tackle!"
"Rai! Rai Rai Rai Rai—"
"Pachi Pachi Pachi Pachi Pachi—"
Pachirisu used Volt Missile and started running away.
Surprisingly, Raichu was able to keep up with him.
In fact, Raichu was slowly closing the gap.
"Raichu! Keep running!"
Pachirisu felt a rush of excitement and grinned.
He suddenly took a sharp left turn.
Raichu was actually able to change his direction easily as well thanks to his smaller body as Ash-Raichu.
So, Pachirisu suddenly jumped up.
Raichu followed.
Just as Raichu was very close to him, Pachirisu used Super Fang!
"Raichu! Dodge!"
But since Raichu was in air, he couldn't dodge. In fact, if he had focused on Volt Tackle, perhaps Super Fang might have not pierced through the lightning.
"Rai!"
Raichu fell down, half of his health down.
And Pachirisu followed up with Iron Tail!
"Raichu! Dodge!"
Raichu manager to dodge at the last moment.
But now, he was panting.
Pachirisu was grinning.
He has checked Ash-Raichu's speed.
He had checked Ash-Raichu's agility.
Now, it's time to check Ash-Raichu's voltage.
With sending an electric current from his tail to left cheek, Pachirisu rushed towards Raichu with a much faster speed, thanks to boost from Magnet Motion.
"Rai!?"
"Use Iron Tail!"
Raichu used Iron Tail. His two long tails glowed, about to deal immense damage.
But Pachirisu suddenly stopped in his tracks by using Magnet Motion to help in hitting the breaks.
A huge dust cloud and rocks rose due to Raichu's Iron Tail.
But Pachirisu used Thunder Armour to shield himself and went through the cloud.
And he landed on Raichu. Grabbed his cheeks, and used—
'Volt Absorb!'
"Rai!"
"Raichu! Shake him off!"
But Pachirisu had already wrapped his tail around Raichu. With his three pointers poking at Raichu.
"Pachi Pachi?"
Do you want me to use Iron Tail like this?
"Rai!"
No!
"Pachi."
So just let me check your voltage.
Pachirisu kept absorbing Raichu's electricity, until he was satisfied.
He has checked how much Voltage Ash-Raichu has.
A lot.
He couldn't really determine anything more than that.
He isn't a scientist afterall.
Suddenly, Ash-Raichu transformed back into his normal state.
Raichu was knocked out.
"The winner of the battle is, Raichu!"
"Pachiri-SU!"
He celebrated by doing the pose of a famous footballer.