Your claws are like a strap-on 'cause there's a pussy underneath
When the glove comes off you're all gums and no teeth
There's not one part of writing you won't dip your twinkle toes in
I really enjoyed you in The Greatest Showman, Logan
I was more intimidated by a tiny Canadian when I first saw Justin Bieber!
This is the first season premiere not to feature Nice Peter rapping, as well as the first one to feature a 1v1 battle with a guest as a title rapper, and the first one to feature a fictional character going against another fictional character.
This is the ninth battle overall where both characters are fictional.
The is the first and only battle to use a hyphen in the title instead of a period.
This is the first battle:
where the subtitles don't abruptly appear at one point, as during the line "three four better lock your, lock your, lock your..." the subtitles fade in and out on every "lock your".
The behind the scenes video has a length of over 15 minutes, making it by far the longest of any other ERB.
The beat for this battle can be heard in the "Epic Rap Battles of History News 2018" video.
This is the longest span of time between a finale and a premiere, totaling over two years, 840 days to be exact.
Krueger's title card has him scraping against the edge of the video screen, accompanied by a screeching noise and orange sparks flying out, an action that Freddy often performs before he attacks.
During Krueger's line "Under that mask, you're a singer/actor. Under my skin, I'm a slasher/slasher!", Krueger slashes off two of his fingers on his left hand, an action he did in the first A Nightmare on Elm Street.
During Wolverine's line "I been to hell and back and whooped Satan's ass, you got beat by a Nancy on Elm Street", the attacking effects from the games he appears in can be seen.
During Wolverine's line "So don't get me more pissed, chump", the word "snikt" appears along with a slicing sound. This is a reference to comic books in which the sound effects of various actions always appear as words to let the reader know what happened.
This is the second occurrence of this visual effect, as it had previously appeared in Jim Henson vs Stan Lee, where Stan Lee would also imitate comic book sound effects.
After Freddy's second verse; Wolverine wakes up in his bed screaming. This is a reference to the A Nightmare on Elm Street where people who survive a dream about Freddy Krueger often wake up screaming in agony.
During the line "I'll call you tomorrow morning if I need my toast buttered", Wolverine lies on his bed and is seen stroking a picture frame. This is a reference to the scene in the X-Men animated series in the 90s, in which Wolverine gazed at a picture frame of the superheroes Cyclops and Jean Grey. This scene from the cartoon also became a famous meme.
In-battle, the picture frame depicts EpicLLOYD partially in makeup as Gandalf, referencing the origins of the heroin joke.
During the line "What qualities do you bring?", a miniature version of Freddy Krueger can be seen walking on the bed behind Wolverine. This is a reference to Nightmare on Elm Street 3, where Freddy possesses a marionette in order to begin the process of killing somebody.
After Wolverine's last verse, Freddy Krueger can be seen emerging behind the wall. This is a reference to the first A Nightmare on Elm Street, where Krueger did the same but on Nancy Thompson's wall when she was sleeping.
In the cover art for the battle, part of Wolverine's mask is chopped off behind the ERB logo.
During the line, "One, two, Freddy's coming for you.", the skipping rope isn't in the Freddy in the background's hand properly.
At 0:55, there is a slight graphical glitch on Wolverine's left breast.
During Krueger's line, "I can't tell the difference between your action figure and your stunt double!", his mouth movements are very limited.
When Krueger says "Some kind of an angry beaver?", Wolverine's shadow is pointing towards Krueger when it should be pointing towards the camera due to the lamp on the wall.
Freddy Krueger vs Wolverine. ERB Behind the Scenes