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About This Game
Welcome to Sans funny boss rush (or SFBR), this is a game where you fight multiple bosses using different characters.
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L2 for shiftlock on Xbox.
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Account should be atleast 30 days old to be able to join the game.
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Undertale by Toby.
Game Passes (8)
Small donation
Donation
RevertDust
Sudden Changes.
ZALGO.
Sixbones
OuterDust bundle
dont buy this thx.
Badges (67)
The easiest enemy
Looks like he won't be coming back for a while... We'll be stronger when he does.
Darkness' Attrition.
That was a lot at once, but you managed to get through it.
Double the slaughter.
Their little plan didn't go well...
DT Frag 1
Create 1 Determination Fragment.
Total Collapse
Now THAT was unexpected. Could he do that this whole time..? No matter, even his strongest wasn't enough.
Consumed by Hatred.
An invader. Betrayed his own kind to grow stronger, yet he got striked down again... What a failure.
???
Interesting... (10% Chance..)
Triple the HATRED.
”Even together, they’re still not strong enough... How disappointing...”
DT Frag 2
Create 2 Determination Fragments.. you're getting stronger...
DT Frag 3
Create 3 Determination Fragments.. You're getting way too strong... maybe you need to stop... Don't go too far...
Eternal Darkness.
He's with you in the dark. The darkness made him stronger. He can sense your fears and insecurities within your soul.
"Welcome back."
His LV is higher than usual.... This will be VERY interesting....
DT Frag 4
Create 4 Determination Fragments.. You need to stop... this isn't funny...
Incoherent flee.
No need for extreme measures... Was that the right thing to do? Maybe he was right... It seems not even you can make good decisions...
Old memories.
Old friends... New enemies...
One left?
We have been tricked! this is bad...
DT Frag 5
Create 5 Determination Fragments..? =)
Unexpected Forgiveness.
“i don’t know if i can forgive you, but… at this point, i’ve done the same thing as you.”
ok.
no questions.
The puppets!
A trio of powerful skeletons controlled by ☜︎☼︎☼︎⚐︎☼︎. Will he just fight us already?
Just in time. [SHARD_1]
"I've done it... There's nothing left to stand in my way. ...Wait. What are you doing here? No, not yet."
Reality Collapse.
A mistake.
Lost souls.
Lost souls controlled by HIM. I wonder who they really are.
DEATH.
You have challenged Death... what a REALLY bad idea you decided to do.
One and only.
That's a one weird looking snow man... Congrats...? I guess..?
Defeat The Powerful Errors!
You did it! you won his game. so... what's next?
Evil begone!
Free the pumpkins from the evil corruption!
A fake fatal error has occured.
0ver-C0de-D0m!n@nce
Shattered Reality.
Everything is just barely staying together.. Soon enough, it shall be forcefully torn open.
Wrong Timeline.
???
Brian?
This thing isn't even connected to the game what the hell?????
The Comedian.
An empty vessel, it seems.
Not the easiest enemy.
Who invited this guy? Looks like we're stuck in another loop.
HIM.
It's all just a game for him. he tricked us into his little game.
GOLDEN LIGHT.
I feel no hatred towards you nor do I bear a grudge against anyone. . . It's just that as we stand in this golden light everything feels so, so wonderful. . . Throughout the original and fanmade soul ops games I alone am the golden one... Imaginary technique. . . Golden Light. . .
Familiar Figure.
Despite the horrifying creature in front of you, you managed to remain determined and free IT from IT's suffering.
Corrupted.
You shouldn't have done that.
A4211920X3
A Worthy Vessel.
Contrasting Motivations
Despite knowing their differences, they brought it upon themselves to survive this madness, but to no avail.
Not quite yet. [SHARD_2]
"They're much weaker than I anticipated... Still, I can't shake the feeling that I'm not quite ready yet."
Out of the ordinary.
An unexpected encounter. Hungry for power. Cold-hearted and consumed by hatred.
Bloodbound Monster.
Bestowed upon those who have willingly accepted Negative's treacherous pact.
Merry Christmas!
Help fatal with his decorations by fixing corrupted christmas decorations around the area.
YOUR DOWNFALL.
A long forgotten monster.
Just like the old times.
HP. ATK. DEF. GOLD. EXP. LV. THEY ARE ALL MINE.
A familiar face.
Lost... (Defeat the april fools event for 2025)
A trip to the past!
I can feel the old memories....
BLOODBOUND SANITY.
???
DUSTDUST?
He reminds you of someone... But who?
His final showdown. . .
Is it tho?
Intentional game design.
Oops! seems like you encountered an "intentional game design"! "woopsie daisy lol" - Pborg
A blast from the past!
Just like the good old days... Were they good tho?
Silly badge!!! (Part 2)
Wow! another one???? hmm seems tricky. but you managed to keep it together the whole way!!!!
Overcame the crisis of "Oct 9th". (Unobtainable)
You attempted to face the one worthy of the soul sword. But at what cost?
Silly badge!!! (Part 3)
Wow! those are some silly clouds you got there. but where are we?
Nonexistent Chance. (April fools)
All of that time... just for nothing... (No longer obtainable?)
Silly badge!!! (Part 1)
Wow! What a wonderful silly badge! I wonder if it has to do with any bosses.
Hunter's prey
The man, the myth, the legend!
"All just for fun"
Beat papyrus encounter event hosted by me (in our community server)
The Beholder.
Was it just a dream...? Or a nightmare.
The Ultimate Challenge.
Beat the ultima challenge using only DTF 4 characters.
Please go outside...
Reach negative 99 Determination Fragments. Why did you do this??? You know you're gonna have to grind it back right?
October 8th. (Unobtainable)
woooooooooooooooooooooooooooooo....
Just like the old times. (Unobtainable)
HP. ATK. DEF. GOLD. EXP. LV. THEY ARE ALL MINE. (Old)
DEEMED WORTHY.
Be worthy to use ZALGO. (unobtainable)
HYPER SANITY.
Are you worthy enough? (unobtainable)
Error code: 666
"Fight fatal error in a battle to death...? well you can't win anyways so rip lol..." (Old)
Game Details
- Max Players
- 6
- Created
- December 18, 2022
- Last Updated
- February 02, 2026
- Avatar Type
- MorphToR6
- Votes
- 11 Thousand up / 2.7 Thousand down
- Universe ID
- 4195129841
- Root Place ID
- 11854016673
- Sub-Genre
- Battlegrounds & Fighting
- Copying Allowed
- No
- Data Updated
- February 27, 2026
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