Megalodon

Death from below
 It will take your heart out
 The worst nightmare you name it
 Don't you try it out
 With the hatred of ages
 Vengeance fallout
 Raining down on you
 You'll be knocked out
 It's been around for centuries
 Cannot ignore the memories
 It has ripped apart the adversaries
 Can't stay too long in penitentiaries
 Not extinct yet! needs to be fed
 It's time to unleash the beast
 The whole time you thought it was gone
 He was there laid down under the deep
 Of ocean, no motion, devotion to carnage
 This is what terror means
 The worst nightmare you have had was nothing
 All dies, the reek of blood heels
 Grow eyes in the back of your head
 You'll never know when it comes
 Appears from the pitch black
 This is what is emphasized
 Thirsty for blood
 Sharpening its teeth, rubbing the gums
 For what y'all did to him
 It brings you your demise
 It's been around for centuries
 Cannot ignore the memories
 It has ripped apart the adversaries
 Can't stay too long in penitentiaries
 Not extinct yet! needs to be fed
 It's time to unleash the beast
 The whole time you thought it was gone
 He was there laid down under the deep
 Of ocean, no motion, devotion to carnage
 This is what terror means
 The worst nightmare you have had was nothing
 All dies, the reek of blood heels
 Born to kill
 Words are too weak to bring out the meaning of rage
 The mark of chains are still on him
 Remembers the smelling of cage
 Vendetta will let you know
 The amount of pain you'll be going through
 Stay armed cause what's going to be taken from you
 Can be given back to you
 The monster lives beneath the surface
 It survived the darkness the worst days
 Meg is alive, will never die
 He refreshes the oceans of hate with your blood