- Season 3 started with Sasuke Uchiha vs Ichigo Kurosaki instead.
- And Season 4 will start with Kenpachi and Akuma duking it out for the very last time. Incidentally, Darth Vader and Adolf Hitler rapped for three rounds until the feud was put to rest.
- Could be jossed considering the To be Continued could've just been leading up to Kenshiro Vs Jotaro Kujo of which Dio is alive and then sent flying off-screen before the newcomers duke it out. Plus at the end of the fight there is no To be continued message so...
- Little Mac vs Ippo Makunouchi
- Confirmed.
- Hawkeye vs Green Arrow
- Confirmed.
- Knuckles vs Wario
- Confirmed.
- Ghost Rider vs Scorpion
- Confirmed.
- Luffy vs Naruto
- Confirmed.
- Zoro vs Kenshin
- Confirmed.
- Vergil vs Sephiroth
- Confirmed.
- Peacock vs Baby Bonnie Hood
- Confirmed.
- Ryu vs Jin Kazama
- Confirmed.
- Kenshiro vs Jotaro Kujo
- Confirmed.
- Master Hand vs Polygon Man
- Confirmed.
- Sora vs Link
- Confirmed.
- Metal Sonic vs Bowser Jr. (In his Koopa Clown Car.)
- Confirmed. At least the episode is before Mecha Sonic crashes the party and replaces Metal.
- Miss Fortune vs. Taokaka (fighting game Cat Girls)
- Goku vs. Superman (only this time it'll be a friendly spar between the two before they go out to save the world together)
- Fa Mulan vs Xianghua (Chinese Swordswomen)
- Michaelangelo vs Pinkie Pie (Cartoony comic relief characters.)
- Mitsurugi vs Hoahmaru (samurai fighting game characters)
- Shiny Luminous vs Rise Kujikawa [Ultimax incarnation] (Combat supports)
- Gardevoir vs Lillymon (A Spiritual Successor to Lucario vs Renamon, with two feminine-looking but very powerful fairy-type mons.)
- Big Bull vs King Dedede (Jet Hammer Duel!)
- Rick Taylor vs Doomguy (A clash between iconic horror game protagonists.)
- Johnny Turbo vs Bad Box Art Mega Man (A match between two overweight, questionably-attired, ray gun-wielding, so-bad-they're-awesome Joke Characters- who AREN'T EVEN HUMAN!)
- Napalm Man vs The Demoman (Explosions galore!)
- Bowser Jr. vs. Tails (Technology-using kids continuing the "Mario vs. Sonic" theme.)
- The Joker vs. Kefka Palazzo (The most famous Monster Clowns in fiction. Joker would get stomped in a normal Death Battle, but he might stand a chance in a One Minute Melee.)
- Matt Helms VS The Pyro (A match between two maniacal, sinister and downright badass masked arsonists that could potentially be shown through each other's distorted views at various points.)
- Ichigo Kurosaki vs. InuYasha (popular sword-wielding anime heroes with demonic powers.)
- Toph Beifong vs. Edward Elric (young masters of manipulating earth and metal through body movement.)
- David Xanatos vs. Lex Luthor (Cunning billionaire villains, both with genius-level intelligence and using super-powerful mech suits to battle foes way stronger than them.)
- Ryu Hayabusa vs. Joe Musashi (A clash between two of the most iconic ninjas of the 8-to-16-bit gaming era. Again, although Joe would most likely be stomped in an actual Death Battle, he would stand a chance in a One Minute Melee.)
- Dudley vs. Steve Fox (A fast-paced sparring match between two British pugilists, continuing not only the "Street Fighter vs. Tekken" theme of Ryu vs. Jin Kazama and Ken Masters vs. Paul Phoenix, but also the boxing theme of Little Mac vs. Ippo Makunouchi.)
- Jack Winslow vs. Voldo (For a more "out there" battle- featuring two dangerously unpredictable and sinister twin blade-wielders. Plus, it'd be good for bringing a relatively obscure fighting game franchise like Power Stone to mainstream attention.)
- Eddie the Head vs. Vic Rattlehead (For something completely different, a clash between two of the most iconic Metal Band Mascots.)
- Ibuki vs. Ayame (Another ninja-themed episode, this time an all-Capcom match between two adorable-but-deadly teenage girls who lead double-lives as Kunoichi. Alternatively, if Ibuki cannot be used due to being in Ibuki vs. Valentine, then Yuffie Kisagari, Kasumi or Natsu — all of whom are fellow teenaged kunoichi — could battle Ayame instead.)
- Caim vs. Zero (Two Ax-Crazy, dragon-riding One-Man Army protagonists from their series.)
- Pit vs. Shantae (A more light-hearted sparring match between two adorkable and upbeat cult-classic gaming heroes with awareness of the Fourth Wall and a myriad of different weapons and abilities to work with, all wrapped up with plenty of potential for some fun back-and-forth banter between the two- especially concerning the history of their respective game series.)
- Iji Kataiser vs. Frisk (Protagonists of acclaimed indie video games that allow the player to choose pacifist/genocide options. And unlike Death Battle, a pacifist option can actually happen here, possible at the end of the fight.)
- Winter Soldier vs. Red Hood, AKA Bucky Barnes vs. Jason Todd (Two Not Quite Dead former proteges to two well-known superheroes, reincarnated as cold-blooded and pragmatic, mask-clad master assassins. Also acts as a Spiritual Successor to Captain America vs. Batman.)
- Metal General vs. General Grievous (Two Laser Blade-wielding and heavily-armed robotic Frontline General antagonists. Much like with the previous swordfights, Metal General's Cyber-Katanas and Grievous's Lightsabers provide plenty of opportunity for several badass sword duels between the two over the course of the fight- and even then, there's also HR-D3 and the Wheel Bike to consider.)
- Boba Fett vs. The Predator (The two most feared and technologically-advanced Hunters in Science Fiction. Plus, it'd be interesting as well to compare the "Honour versus Reason" approaches to what they do.)
- Birdie vs. Billy Kane (A potential Evil Counterpart match to the Dudley vs. Steve match mentioned above. This would be a straight-up brawl between two violent British thugs with Super-Strength and who both use predominantly chain-based weaponry. Their different "Power vs. Speed" approaches to combat could make it very interesting.)
- Sakura Kasugano vs. Yuri Sakazaki (Upbeat schoolgirl martial artists and younger companions to the main characters of their respective fighting franchises.)
- Batman vs. Frank West (Batman fights another Capcom character, except this time, he's another Badass Normal who relies on an extremely versatile arsenal to win. Though of course, Frank's weapons tend to be a bit less...cutting edge than Batman's, to say the least.)
- The Lizard vs. Killer Croc (Two major supervillains from the respective Marvel and DC Universes who retain their human minds after mutating into horrific, super-powerful reptilian monstrosities. Their savage natures and feral, brutal fighting styles, as well as their habits of dwelling underground, could easily make this a much darker and more violent melee than usual.)
- King Asgore Dreemurr vs. King K. Rool (For another "villain-vs-villain" clash, this time between two massive-but-powerful royal figures who are the active final bosses of their respective games. Plus, besides the obvious "mammal vs. reptile" and "reluctant villain vs. full-on bad guy" aspects, there's also a bit of a Magic Versus Technology element to it, with Asgore's Pyrokinesis and transforming trident versus K. Rool's various gadgets and weapons. Alternatively, Asgore could fight either King Dedede or General Gaius.)
- Bass vs. Hyper Metal Sonic (Although technically this was already done as part of Doctor Eggman vs. Doctor Wily, this one would work well in seeing who would win in a one-on-one clash between the two most powerful robotic enforcers of their respective creators. Plus, it'd be good for giving Metal Sonic a chance to actually be in a One Minute Melee after being replaced by Mecha Sonic in its planned fight against Bowser Junior. Alternatively, Metal could also fight Vile.)
- Katsuragi vs. Angel (Another all-female match, this time between two very powerful, flirtacious and evidently quite endowed physical brawlers who specialize in varying techniques— Katsugari's kicks versus Angel's wrestling.)
- Discord vs. Bill Cipher (A more comedic match between two affable and goofy, yet very dangerous Reality Warper villains — fought predominantly using their respective abilities and cunning, eventually culminating into utter Disney Acid Sequence-esque chaos as their powers and influence over the world around them collide. For a similar bout, Discord could alternatively fight Jevil.)
- Zangief vs. Big Bear (An exhibition wrestling match between two hulking, bearded and super-strong but surprisingly good-natured Faces who have both previously dabbled in villainy. It could work much like Little Mac vs. Ippo Makunouchi — albeit in a wrestling match instead of boxing — and considering how massive the two competitors are, it could easily end with the finishing slam collapsing the entire ring, much like in a certain Smackdown match.)
- TEAM BATTLE: The 1987 Teenage Mutant Ninja Turtles vs. The Ninja Baseball Batmen (For what would be the series' first match with full teams, Leonardo, Donatello, Michelangelo and Raphael take on Captain Jose, Stick Straw, Twinbats Ryno and Beanball Roger in an all-out melee. Considering the colourful, Crazy Is Cool natures of both sides as well as their respective fighting capabilities, this one has plenty of potential to be brilliant.)
- Laurence Blood vs. Vega (A vicious cage-match between two narcissistic and flamboyant yet bloodthirsty Spanish enforcers to their respective masters, who specialise in bullfighting and the use of bladed weapons— Laurence's espada versus Vega's steel claw. Considering both fighters' fondness for roses and drawing blood, it could easily end with the winner throwing a rose onto the loser's bleeding corpse as they leave.)
- Cloud Strife vs. Guts (a battle between two of the most iconic BFS-wielding swordsmen in media.)
- Cammy White vs. Nina Williams (an all-female battle between two blonde and former amnesiac— not to mention very attractive— agents from the British Isles, skilled in the ways of assassination. Not only does it work with the similarities of the two, but them being on opposite sides and rival agencies provide a lot of potential set-ups for their battle.)
- Assault Bomber vs. Flame Hyenard (a clash between two very loud, hammy, unstable and violent berserkers of their respective groups— the Crush Bombers and Red Alert— both with a particular affinity for fire, explosives, and causing mass destruction around them as they fight.)
- RED Spy vs. Black Spy (Another espionage-themed battle, this time between two very different types of agent. It could play out very well as a cunning-based action comedy, with the more serious RED Spy's various tools and weapons versus the more outlandish Black Spy's traps and tricks.)
- Ragna the Bloodedge vs. Ruby Rose (a clash between two red and black scythe masters that also have mysterious powers and have lost family and friends.)
- Sparkster vs. Frog (a battle between two Funny Animal knights in shining armour and master swordsmen from the Sega Genesis and Super Nintendo Entertainment System era of gaming, and champions of their respective royals.note It'd also work well as the basis for another Magic Versus Technology-based battle, with Sparkster's rocket pack and beam sword versus Frog's magic spells and transformed abilities.)
- Jibanyan vs. Sailcat (Supernatural creatures that once were regular cats who became what they're now after being run over by a truck.)
- Heihachi Mishima vs. Blanka (Katsuhiro Harad's Favourite Tekken Character versus Yoshimori Ono's Favorite Street Fighter Character)
Although it's only from the waist down, it looks like he's the one that appears and chastises Naruto at the end of "Roronoa Zoro vs Himura Kenshin".
- Confirmed. His opponent is Ichigo from Bleach.
At the end of "Sephiroth vs. Vergil" Sephiroth tells Vergil he'll see him again. Considering Sephiroth hardly ever takes a fight seriously, it's likely he'll come at Vergil with much more vigor than their first encounter.
After only having fought the SA-X last time, the real Samus Aran will appear at some point to challenge Mega Man to a sparring match with her actual self as opposed to an evil copy. Both combatants could use more of their tools from their own series, especially the weapons they didn't use in Smash 4.
- Considering what happens to Polygon Man, that kid is probably going to have some really irritated parents.
Hawkeye lost through a non-fatal KO, which probably explains why he shot at Green Arrow out of nowhere in their Death Battle.
- Alternatively, the Melee was actually a sequel, with a revived Green Arrow sneaking around and trying to get his revenge on Hawkeye, only for Hawkeye to see him coming and get the opening attack instead.
- This could be an idea for a sequel to Zero vs. Meta Knight playing on how massively Out of Character Zero was throughout in their fight (To the point of gleefully murdering his opponent despite normally being Three Laws-Compliant) being explained as him going maverick. After slaying Meta Knight and then teleporting away, the deceased Star Warrior could then be brought back to life either via extra lives, or by Kirby (Or some other allies, like Sword and Blade) using a wish from the Galactic Comet NOVA to resurrect him. Then once Meta Knight returns (And it then being established that Zero has gone maverick, which would accurately explain why he killed him in the first place when normally he would not), he could then find and challenge the now more-mavericked and less-sane Zero to a rematch which he takes more seriously, with his opponent likewise not holding back- not only to make up for his previous defeat, but also to save Zero from going completely insane and more-or-less kicking the world's head in.
- So in effect, explaining out-of-character-ness, providing an actual opportunity for a rematch and resolution between the two that does both characters justice, and also providing a potentially interesting overarching storyline to the match-up, ala Akuma vs. Kenpachi or Naruto vs. Luffy.
- Confirmed. It actually happened at the end of the fight.
- Jossed. Superboy vs. Gohan reveals that he's a faulty clone.
- Confirmed. Bowser vs. Dedede was the second fight of Season 6.
- Shantae vs. Filia.
- Confirmed.
- Bill Cipher vs. Sans.
- Confirmed.
- Mario vs. Sonic.
- Confirmed.
- Meta Knight vs. Shovel Knight.
- Confirmed.
- Mewtwo vs. Frieza (REMATCH).
- Confirmed.
- Luigi vs. Tails.
- Confirmed.
- Kirigaya Kazuto vs. Guts.
- Confirmed.
- Tatsumaki vs. Shigeo "Mob" Kageyama.
- Confirmed.
- Vergil vs. Sephiroth (REMATCH).
- Confirmed.
- Son Goku vs. Saitama.
- Confirmed.
- Kakashi Hatake vs. Byakuya Kuchiki.
- Confirmed.
- Scott Pilgrim vs. Viewtiful Joe.
- Confirmed.
- Hiei vs. Killua Zoldyck.
- Confirmed.
- Crocodile vs. Gaara.
- Confirmed.
- Jossed. It ends in a Double Knockout with uncertain fate for both combatants.