This is a song Darc and Isaac suddenly break into for a gag reel in "Adepto Opulenta!"
Darc: "Hey, Isaac!"
Isaac: "What?"
Darc: "I challenge you to a sing-off!"
Isaac: "...?"
Darc: "I'll start!"
Isaac: "...?"
Darc: "Yo! Check! Check! This is Darc! The man, the myth, the legend! Comin' to ya' straight from Sayo's appartment in the city of Ark!"
Isaac: "Er... This is Isaac! Doctor Death, Master of Malpractice, and Euthenizing Enthusiast! You ready for a beat?! You better! We're gonna... Break it down!"
Both: "We're your Masters of this Ceremony, pumping up the opening rites! Get ready, cuz' we're out of sight! Listen to our Siren's Symphony, let our music hypnotize~!"
Darc: "I'm the Shadow with the dark eyes! They said I was weird, strange, and abnormal!"
Isaac: "I'm the Reaper you all know and love, unlike this chump, my beats are classical!
Both: "We're a pack of freaks, you've only known us for weeks~! But for reasons unknown, we live in your home~!"
Darc: "But it's okay~!"
Isaac: "It's okay~!"
Both: "We're just some creeps~!"
Darc: "I sniff your hair after you take a shower~! I affectionately cuddle when you give me pointless crap~! I'm knocking on your door at the latest hour~! Why am I here~? What do I plan to do~?! ...Nothing much. I actually wanted to confess about stealing your shoes.
Isaac: "I lurk in the dark, acting morbid and morose~! To be honest, I can't even wash my clothes~! When we go hang out, we awkwardly chat~!"
Darc (Talking): "I like to go to the movies!"
Isaac (Talking): "I COLLECT KNIVES FOR EVERY PERSON I KILL!"
Darc: "Anywhere he goes the rodent population thrives~! He's the greasiest of the greasy, he gets cooked in sunlight~!"
Isaac: "But it's okay~!"
Darc: "It's okay~!"
Both: "This is Grade-A Creeping!"
Darc: "We'd be singing something more offensive, but you'd all get defensive~!"
Isaac: "We can barely sense the mood, please don't call us rude~! He's just depressed, and I'm easily impressed~!"
Both: "We talk like raunchy pervs, please don't question our nerves~! We're just two Grade-A Creeps you've been cursed with befriending~!"
Darc: "But it's okay~!"
Isaac: "It's okay~!"
Darc: "What's with the look~?! We were only joking~! We're normal enough, our skills are up to snuff~!"
Both: "Forget we said anything~ This song's reached it's ending~!"
Darc: "But it's okay~!"
Isaac: "It's okay~!"
Both: "WE'RE ONLY JOKING~!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"