Song by Man On The Internet. Other Project; Undertale Genocide Package Part 1 - https://scratch.mit.edu/projects/177650962
lyrics: hahaha I'm back~ I can see you didn't miss me do you know what it's like to not exist To see yourself scattered throughout the mist I am the hero that never came but now things are different I'm here to stay I once thought this whole world was blind now I see the task to stop all humankind falls to me this next experiment will be interesting now you will feel the void as well beckoning You who look but are blind to see stare into the abyss there is only me the abyss gazes back, I attack you see, I am here it's a fact so you must believe the shadows grow and you have no hope you will break, you will quake at the things I know you will never strike your killing blow I am here finally time to end this show say within the flames can you still hear my name once upon a time in the days of yore I made one mistake fell into the CORE But I'll stop this human I will stop the war erase the past my will be done once I was lost but now I'm found I was always there hidden sights and sounds now its time to free the underground you cannot stop me I have not begun! you who look but are blind to see stare into the abyss there is only me The abyss gazes back I attack, you see I am here, it is a fact so you must believe the shadows grow and you have no hope You will break, you will quake at the things, I know you will never strike your killing blow I am here, finally time to end this show every time, every crime every lie you told yourself every kill, every thrill still, you will end up in hell I have seen, everything watching from within the code break this world, lies unfurled chaos whirls, the truth will show I will stop your evil plan I've become a boogeyman haven't you heard to beware the doctor who speaks in hands? you fell down, now I'll have FUN for the sake of everyone to avenge my fallen sons you can't stop what has begun The doctor is insane I have bugs In my brain But the truth still remains you won't be entertained welcome where time stands still no one leaves no one will on your back feel the chill punishment for the kill every time every crime every lie that you told every kill still you will feel the chill deathly cold through the fire and the flames they've forgot- -ten my name fallen child end this game only you are to blame I once thought this whole world was blind now I see the task to stop all humankind falls to me the next experiment will be interesting now you will feel the void as well beckoning "Such determination. . . If only I had some when it mattered oh well. that's fate, I suppose. now then. . . time to change ours. Shh. . . do you hear that? that's the call of the void. . ."