《Unknown from M.E.》是Marlon Saunders、Dred Foxx（SA）、Hunnid-P（SA2）演唱的一首歌曲，收录在专辑《Sonic Adventure Original Soundtrack》中。

“Unknown from M.E.”是《刺猬索尼克》系列中的角色纳克鲁斯的主题曲。这首曲子最早出现在游戏《索尼克大冒险》中，这是一首结合了嘻哈，爵士乐，摇滚和R&B多种风格的混合乐。这首歌是由Marlon Saunders和Dred Foxx演唱的。而在《索尼克与黑暗骑士》中，这也是纳克鲁斯所饰演的圆桌骑士高文的主题曲。而在《索尼克大冒险2》中这首曲子又有另一个版本，演唱者是Marlon Saunders和Hunnid-P。和之前的版本相比，这个版本的节奏更快，以说唱为主。

索尼克大冒险

Here I come, rougher than the rest of them

The best of them, tougher than leather

You can call me Knuckles, unlike Sonic I don't chuckle

I'd rather flex my muscles

I'm hard as nails, it ain't hard to tell

I break 'em down whether they're solid or frail

Unlike the rest I'm independent since my first breath

First test, feel the right, than the worst's left

Born on an island in the heavens

The blood of my ancestors flows inside me

My duty is to save the flower

From evil deterioration

I will be the one to set your heart free, true

Cleanse yourself of them evil spirits that's in you

Streaking lights, loud sounds, and instincts

Are the elements that keep me going

I am fighting my own mission

Nothing's gonna stand in my way

I will be the one to set your heart free, true

Cleanse yourself of them evil spirits that's in you

Won't be frightened, I'll stand up to all the pain and turmoil

Just believe in myself, won't rely on others

Get this power to wipe out the havoc and anarchy

This is my planet, gonna fight for my destiny

Here I come, rougher than the rest of them

The best of them, tougher than leather

You can call me Knuckles, unlike Sonic I don't chuckle

I'd rather flex my muscles

I'm hard as nails, it ain't hard to tell

I break 'em down whether they're solid or frail

Unlike the rest I'm independent since my first breath

First test, feel the right, than the worst's left

I have no such things as weak spots

Don't approve of him but gotta trust him

This alliance has a purpose

This partnership is only temporary

I will be the one to set your heart free, true

Cleanse yourself of evil spirits that got in you

Won't be frightened, I'll stand up to all the pain and turmoil

Just believe in myself, won't rely on others

Freedom will be waiting when serenity is restored

This is my planet, I shall not surrender

Won't be frightened, I'll stand up to all the pain and turmoil

Just believe in myself, won't rely on others

Get this power to wipe out the havoc and anarchy

This is my planet, gonna fight

Won't be frightened, I'll stand up to all the pain and turmoil

Just believe in myself, won't rely on others

Freedom will be waiting when serenity is restored

This is my planet, I shall not surrender

The new porcupine on the block with the buff chest

In the wilderness with the ruggedness

Knock, knock, it's Knuckles, the bloat thrower

Independent flower, Magical Emerald holder

I'll give you the coldest shoulder

My spikes go through boulders, that's why I stay a loner

I was born by myself, I don't need a posse

I get it on by myself, adversaries get shelved

索尼克大冒险2

Okay

Something's callin' me; I don't know what (Yeah)

Something's talkin' but I don't know who (Yeah)

Something's callin' me more and more

No one stops Knuckles' feet

Something's callin' me; I don't know what (Yeah)

Something's talkin' but I don't know who (Yeah)

Something's callin' me more and more

No one stops Knuckles' feet

K-N-U-C-K-L-E-S (Uh)

Was born for a lifetime on Angel Island yeah (Yeah)

His duty's to protect Master Emerald diamond

Hold the climate, he's searching for shining

But every time he look for the sun, can't find it (Uh)

Is this the way, the path I chose? (Yeah)

Then why am I living with my heart so cold? (Uh)

All that I see is a storm of stones?

I like to dig holes in search of gold

(Born on an island)

Large pots of treasure, if they're much better (Uh)

(In the heavens)

If I find Eggman, Rouge, whoever (Yeah)

(The blood of my ancestors)

Clench my fists tight, become more reddah (Yeah)

(Flows inside me)

I don't wanna hurta, my passion observed

(My duty is)

Been lonely all my life, doesn't matter

(To save the flower)

Here for the mission, whoever want it bring it

(From evil)

Call me stubborn but I'm still gonna live it (Uh)

(Deterioration, yeah)

Doing anything to get the pieces of the Emerald

Climb the mountain, through the valley around the hill

(Oh, yeah)

Wild and hungry, ain't a damn thing funny

My philosophy's my knuckles and feet

Streaking lights, loud sounds, and instinct,

Are the elements that keep me going?

I am fighting my own mission

Nothing's gonna, stand in my way, no

Something's callin' me; I don't know what (Yeah)

Something's talkin' but I don't know who (Yeah)

Something's callin' me more and more

No one stops Knuckles' feet! (No no, no, no, no)

Okay

Yeah, yeah

(Oh) Won't be frightened, I'll stand up to all the pain and turmoil

Just believe in myself, won't rely on others

(Oh) I get this power to wipe out the havoc and anarchy

This is my planet, gonna fight for my destiny

Something's callin' me; I don't know what (Yeah)

Something's talkin' but I don't know who (Yeah)

Something's callin' me more and more

No one stops Knuckles' feet

I have no such things as weak spots

Don't approve of him but gotta trust him

This alliance has a purpose

This partnership is only temporary, oh

Hey

(Oh) Won't be frightened, I'll stand up to all the pain and turmoil

Just believe in myself, won't rely on others

(Oh) Freedom will be waiting when serenity is restored

This is my planet, I shall not surrender

I was born like this, to fear no one

I'm straight thugged out, only live to my ones

Diamonds and gems, we could battle to the end

You best to be aware of the knuckles that I send

Once they penetrate, they put you to your death

They hard as iron, and my feet is like fire

You'll never see me run and I won't surrender

I just fire away like no other contender, uh

(Oh) Won't be frightened, I'll stand up to all the pain and turmoil

Just believe in myself, won't rely on others

(Oh) I get this power to wipe out the havoc and anarchy

This is my planet, gonna fight, ah

(Oh) Won't be frightened, I'll stand up to all the pain and turmoil

Just believe in myself, won't rely on others

(Oh) Freedom will be waiting when serenity is restored

This is my planet, I shall not surrender (Oh)

Something's callin' me; I don't know what (Yeah)

Something's talkin' but I don't know who (Yeah)

Something's callin' me more and more

No one stops Knuckles' feet

Something's callin' me; I don't know what (Yeah)

Something's talkin' but I don't know who (Yeah)

Something's callin' me more and more

No one stops Knuckles' feet

Something's callin' me; I don't know what (Yeah)

Something's talkin' but I don't know who (Yeah)

Something's callin' me more and more

No one stops Knuckles' feet

Something is callin' me; I don't know what

Something is talkin' but I don't know who

Something is callin' me more and more

No one stops Knuckles' feet