1-on-100 is a single-player mode in which the player attempts to defeat 100 of the Cell without being knocked out.
Overview
In 1-on-100, the player's goal is to defeat 100 of the Cell. They are computer-controlled and are capable of attacking, dodging, and grabbing, but can be defeated in one hit. The enemies are split into groups of nine or ten enemies, though only up to three may appear at a time. They will become increasingly more aggressive each set of ten. Once a group is defeated, a Fire Bomb will appear if the player has full health; otherwise, HP Juice will appear. No time limit exists in 1-on-100, though the time the player takes to win will be recorded.
The type of ARMS the Cells will use is dependent on stage, favoring the home character's default ARMS, their first choice ARM being the most prominent, though the diversity of ARMS increases during the latter groups of Cells. Hedlok is the final enemy players must defeat before clearing 1-on-100. It takes the form of one of the Cell, but has six ARMS and has a health bar. Hedlok will always be equipped with the first choice ARM of the stage's home character in both hands.
Each fighter can only play 1-on-100 on their own themed arena initially. However, once an arena is beaten (all 100 members of the Cell defeated), then its corresponding fighter can play on other arenas which have also been beaten. For example, Spring Man can only play on Spring Stadium until it is beaten; then, he can be used on other arenas.
SPOILER ALERT! Don't read if you don't want to be spoiled.
Each map has a set of quotes from various persons after the mode ends. The displayed quote changes based on whether the player lost after a specific number of The Cell are defeated, or if all 100 enemies were beaten and the mode was won.
Spring Stadium
Level 2: "And the crowd goes WILD! Is it just me, or do those 'boings' sound like 'boos'?"
Level 3: "Ah, this reminds me of that ol' sports adage--long arms'll only get you so far!"
Level 4: "What you need is a spring in your step! Or possibly just more practice."
Level 5: "Start practicin' that autograph, 'cause we got a star on the rise!"
Level 6: "Halfway there! Next time, I'd try twice as hard!"
Level 7: "That's what I'd call an A-MAZ-ING performance... if it was only slightly better!"
Level 8: "What a nail-biter! Someone call the salon--'cause the whole stadium needs a manicure!"
Level 9: "Ladies and gents, I'm on the edge of my seat. Let's hope my vertigo doesn't kick in!"
Level 10: "That performance had me seeing stars! I gotta stop holding my breath when things get tense..."
Pre-Hedlok: "You’re so close, I can taste it! Mmm...springy!"
Hedlok: "You flew too close to the sun, my friend. Too close..."
Win: "An epic win! Can you believe it? What am I gonna scream about now?!"
Ribbon Ring
Level 1 or 2: "So, uh... you know this isn't the rehearsal, right?"
Level 3: "Good luck selling tickets after THAT performance!"
Level 4: "You know how they say 'the show must go on'? That only happens if you actually, like, show up."
Level 5: "So, when I said 'break a leg' I meant that LITERALLY."
Level 6: "Nice! Looks like you finally found your rhythm."
Level 7: "You had your opponent dancing that time! It woulda been the perfect time to drop that beat."
Level 8: "Those harmonies are really coming together!"
Level 9: "Merch sales are through the roof! Speaking of, that's where you should have thrown the other guy."
Level 10:
Pre-Hedlok:
Hedlok:
Win:
Ninja College
Level 2: "Total fail-time to hit the books! (Like, actually start punching them.)"
Level 3: "I'd give that performance a U for "underwhelming.""