You can trigger random events in the game:

But aren't Magikarps close to death.......?

The Magikarp can also get lost. How? Did I sit down and it wandered off? Did I get attacked by Team Rocket? Anyway, it found me again.... Somehow

HOW DOES ONE MASSAGE A KARP? 

I really don't want to know. 

As for the um,... Lost, Magikarp...

They got eaten by Pidgeottos. ;-;

Of course the Pidgeottos ate my favorite Magikarps and not the one I hated. That one was able to get a berry. Both times were accidents.

These are the events that can kill your Magikarp. I don't know about the shiny object event, though, as the one goof I had was glass and not a diamond.

The Magikarps hit stuff to train..... That is really bizarre.....

Anyway, in the game I beat two leagues of jumping Pokémon....

https://youtu.be/H3x3-22Gi3g

If you have enough of this there's always the song in another language that isn't English or Spanish with Spanish subtitles.

https://youtu.be/Rgj65x36TYs