I'm told that by Level 60 onwards the party members became weaker. I'm chilling in fear.

I'm told that by Level 60 onwards the party members became weaker. I'm chilling in fear.
And once again I lose to that idiot.
Okay... Let me try again...
Back to more training...
Grrr... Defeated again.
At least I was a bit better this time.
I won't lose this time!
Today's episode: Zeromus, I'm gonna kill you!
Final Fantasy time!
Today I'll finally defeat Zeromus! If not it will be later! Or tomorrow... Or another day...
Okay, I'll train more so I'll defeat Zemus/Zeromus tomorrow.
Tomorrow's episode: Zeromus, I'm gonna kill you!
Oh yeah... Third try, I guess?
I'm not going to lose to you again!
Let me try again...
Okay, time to pull a DQIII again.
Okay, let me do this again...
Lost the fight... Oh wait, no bad ending or something?
It's like the final fight in Dragon Quest III. A similar thing can be said about Dragon Quest XI's true final boss.
Thanks for the crystal.
Oh yeah, I remember that scene...