Rap Battles, also called Stupid Rap Battles of Fat Italians, are a recurring event of the War of the Fat Italians series. The first one appeared in the 2015 episode and have appeared in every one that has come after it so far.
The battles are mainly between Mario and SMG4, but other characters have joined in the rapping as well.
Key: Mario (Mari0) - SMG4 - Bowser - Luigi - Fishy Boopkins - E. Gadd - Meggy - Bob - Waluigi - Saiko - Tari - Wario - X - Shroomy - SMG3 - Rob - Axol - Anti-Shroomy - Belle - Whimpu - Jub Jub - Luigi Doll - Ax0l/SMG0 - Melony - SMG2 - SMG1 - Crowd reactions, announcers, Miscellaneous characters
|2015 Rap Battle|
It's-a me, Mario
Well, I didn't know being a fatty was so cool
You sit at home all day on your PC like no end
Girlfriend? Are you kidding? That's just rude
(roars) YOU SON OF A BITCH!
|2016's Rap Battle|
Let's a-do this bitches, Mario's back to slay
Oh boy, it's time to wreck a fat italian
Looks like the turtle decided to come out of his shell
Oh boy, Mario, my fat italian foe
Shut the hell up, you spaghetti loving freak
Oh jeez, it's Bowser, I'm gonna need my glasses
SMG4. The star, the man of the hour
Shut up, Bowser! No one likes you! You're a mess!
|2017's Rap Battle|
S to the M to the G to the 4
Oh boy, you're back. Am I living a dream?
Ha! That's funny, we've only begun!
Oh no, it's Luigi, I'm so afraid!
Hey SMG4! You're stinky and fat!
I'm sorry, Fishy Boopkins, but that rap was invalid
What's up bitches, this is my rapping debut
Shut up, you stupid wannabe Edison
It's such a shame!
Woo what up bitches, it's Bob time!
|2018's Rap Battle|
What's up losers, it's me Waluigi!
Your obsession for rejection must be a weird complexion
When will you ever come to your senses
Oh, now my mercy has just departed
Oh crap bois
You're so mean!
You know, fighting's kinda lame
Your half-baked rhymes are clearly evident
And in the red corner with an infinite weight
Listening to you is like a new form of torture
You impotent fool!
There has to be one person left that likes you
What? That's impossible!
|2019's Rap Battle|
All right guys, I think you two insulting each other is overrated.
Games with Mario?
Bro, your FPS flair is just a joke
Okay, this isn't really working, it seems
If that's gonna happen, I don't want to be alive
I brought poison for two!
It's good that you play games with lost of dating
Okay, this is becoming more of a mess
All the poor villagers would all lose their sanity
Bro, why do you think you'll be taken so seriously
This is so frustrating
You need a game with lots of Uzis
No no, a game with waifu boobies!
A drawing game will help you be more inclined
Be sure to take breaks in interval, guys!
You gotta play fighting games
I know you two are feeling uneasy
Mario, just go home
I'm sorry, bro
You guys got ten seconds to compliment each other
Hey man, what's with all this sass?
Yeah dude, what got up your ass?
Activating instant kill.
Oh God! Mario! I'm sorry for talking smack!
You too! Uhhh... I think you make a great snacc!
|2020's Rap Battle|
Sorry lads, game's ending early
You can't even compete, so try and hit delete
It's SMG3, YouTuber wannabe
How dare you; This is war
I am a chad cause I eat corn
You guys are all fake, you have no appeal
We're next gen, you're old news
Using them for his own gain?
Yeah, he doesn't care about you!
You guys can't honestly believe these clowns
Sorry man, I'll make this fast
You treat your workers with no respect
You promised us wealth and fame
A manipulative lying piece of trash
|2021's Rap Battle ("Zero")|
Time ticks down and fades all our sorrow
Your pleas are all in vain
Hello fellow friends
Mario, cmon man quit
Well I think that
Sorry bro this might hurt
Relinquish your grip on our hero
Ah sorry, this is whack
Zero we've sacrificed
Can't let you do that
Oh boy you can feel it
あなたの最後は今よ (Your last moment is now)
Sorry to bother your heartbreak
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- 2015's Rap Battle is the only one that is just between Mario and SMG4; the rest have featured other characters.
- 2016's Rap Battle introduced Bowser as a surprise "boss battle", making it the first instance where another character joins the rap.
- 2019's Rap Battle is the first, and currently only, to feature X as one of the rappers.
- Weirdly, the rap for WOTFI 2021 seems to have a genre more on singing rather than rapping, as most of the lyrics are sung by Meggy, Ax0l, Melony, SMG4 and SMG3.
- There have been four "Boss Battles": the first being 2016's Rap Battle against Bowser, the second being 2018's against Walu-Rambo (& Bob), the third being 2020's in The Glitchy Gang against Anti-Cast, which changes in the second half to Everyone against SMG3 and the fourth being everyone verus SMG0 and Mari0. In these cases, Mario & SMG4 will team up against the bosses.
- The music that 2017's Rap Battle is set to is Napal Baji by PSY.
- The music that 2018's Rap Battle is set to is Picture Perfect B-Side (Remix) from A Hat in TIme.
- The music that 2019's Rap Battle is set to is Move Like This by Jules Gaia.
- 2020's Rap Battle is the first to feature SMG3.
- The rap battles for 2020 and 2021 are the second and third songs to have been originally composed for the SMG4 series, Darkest Hour being the first.
- 2020's Rap Battle callbacks to the stages of the previous Rap Battles. (Tari and Belle rapped on 2015 and 2016's Smash Stage, Luigi and Anti-Shroomy rapped on 2017's Boxing Ring, Bob and Rob rapped at 2018's location and SMG3 stood on 2019's stage.)
- 2018, 2020 and 2021's Rap Battles that are part of WOTFI 2018, 2020 and 2021 are the only ones so far to be part of arcs: The Waluigi Arc, The YouTube Arc and The Genesis Arc.
- Consequentially, 2018 and 2020's rap battles begin after the final challenge is interrupted and doubles as a fight to the death (In 2018's WOTFI, Tari interferes with the challenge, causing Waluigi's Staff of Rejection to break. After everyone reunites, Waluigi starts the rap. In 2020's, SMG3 abruptly ends the final challenge by threatening to kill Boopkins if he didn't get the YouTube Remote. Once he claims it, he starts the rap.).
- The 2021 Rap Battle is considered the darkest as it is the only rap to have a character's death involved before, during or after it.
- 2021's Rap Battle is the first one that has an official name: "Zero."
- The 2021 rap battle is the first to have Saiko rap or sing in intelligible Japanese (she sang in English in Darkest Hour, and gibberish in the 2019 and 2020 rap battles).
- The 2020 rap battle is the one with the most singers (15), followed by 2021's with 12.
- Meggy didn't sing in 2019's rap battle, but has sung in every other since her debut.
- Despite the WOTFI being video game themed (and her involvement in it), Tari didn't sing in the 2019 rap battle either.
- Rob, Boopkins and Shroomy didn't sing in 2021's Rap Battle.
- When 2020's rap battle is released in streaming platforms like Youtube Music or Spotify it's titled as Youtube Arc Wotfi Rap.