Gotta kill em all!

You battled like a boss!

I wanna be the very best! Like no one ever was! To kill them is my real quest! To stab them is my cause! I will travel across the land, murdering far and wide. Each Pokemon to understand the light that's inside! Pokemon! Gotta kill them all! It's you and me; I know it's your destiny! Pokemon! Ohhhhh you were my best friend. In a world they must defend! Pokemon! A heart so true! Your courage will pull you through! You teach me and I'll saw you! Pokemon! Gotta kill them all!

*freddie mercury mode on* Mamaa, i just killed a man

I need to start playing Pokemon again! Which version is this , please?