"The Only Thing I Know for Real" is the boss theme and image song for Samuel Rodrigues in Metal Gear Rising: Revengeance.
The lyrics describe how he has forgotten the reasons why he fights, but that he can't stop himself because he feels as though it is the only way he knows how to live.
Lyrics
Memories broken, the truth goes unspoken
I've even forgotten my name
I don't know the season, or what is the reason
I'm standing here holding my blade
A desolate place (place!)
Without any trace (trace!)
It's only the cold wind I feel...
It's me that I spite as I stand up and fight
The only thing I know for real:
There will be blood (blood!) shed (shed!)
The man in the mirror nods his head
The only one (one!) left (left!)
Will run up on the dragons back
Because the mountains don't give back what they take
Oh, no! There will be blood (blood!) shed (shed!)
It's the only thing I've ever known
Losing my identity
Wondering: "Have I gone insane?"
To find the truth in front of me
I must climb this mountain range
Looking downward from this deadly height
And never realizing why I fight
Credits and original composition
Written by: Logan Mader & Jamie Christopherson
Lyrics by: Logan Mader & Jamie Christopherson
Recorded by: Logan Mader
Produced by: Logan Mader & Jamie Christopherson
Mixed by: Logan Mader
Remixed by: Maniac Agenda
Vocals: Tyson Yen
Guitars: Bill Hudson, Johnny Death, & Logan Mader
Drums: Ralph Alexander
Bass: Logan Mader
Programming: Logan Mader & Jamie Christopherson