Battle Against A True Hero (Undertale)

You think you are someone to fight with courage
And when you see me you feel your body tremble
You think you can beat me but you won't
Real heroes will never fail

Heroes like me fight to the end
For nothing in the world will you beat me
I have trained with effort and sweat
And even if I fall, nothing can stop me

I must always be strong and standing
Because this way evil will not succeed
You learn much more by fighting
Killing just for the sake of killing!

I know how to recognize
To a great rival
I must admit it
You know how to fight
I see you hold on
Even if the blow hurts
But you insist and
You want to win

You are bold
You are decided
You use your power
To kill
Do you want to pass?
I won't leave you anymore
If I must die
I will do that!

I just want to see you decay
But you don't want to lose
That pride you have in yourself
That's what will make you die!

A true hero is one who fights until he can't fight anymore
And if I die fighting, I know I did very well
Even if I fall again and again, I will get up
Today I don't plan on losing

A true hero is one who fights until he can't fight anymore
And if I die fighting, I know I did very well
No matter what you do this will be my final blow
Real heroes will win