Shadow and Knuckles 4 ever

Shadow: Can you see all of me? Walk into my mystery. Step inside and hold on for dear life. Do you remember me? Capture you or set you free. I am all and I am all of me.

Knuckles: 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 them down whether they're solid or frail. Unlike the rest I'm independent
It's my first breath, first test,
feel the right then the worst's left