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About This Game
This game will not be receiving updates, but will remain open. Thank you all for playing and supporting Sans Multiversal Battles! 2.
[DESCRIPTION]
Sans Multiversal Battles! 2 is a fighting game where you play as Sans and other Undertale AU characters and battle others in a Free-For-All battlefield!
Battle others and prove who's stronger!
Player Lock Keybinds: Middle Mouse Button or "L" for PC players, or Left Trigger for Controller players.
You may experience some lag or other performance issues when playing due to moving parts.
Recent game updates can be read about in the "Update Log" in the title screen.
Of course it goes without saying that abusing glitches, or using third-party clients to exploit in the game is not tolerated and will result in a ban. Please report any person you find who may be doing either of the two to any staff in our community server.
Undertale by Toby "Radiation" Fox.
Game Passes (1)
Papyrus Bundle Pack
Badges (8)
You joined!
Join the game!
Anniversary!
Available once a year for 24 hours! "Happy birthday SMB2."
room_water_fakehallway
A hidden hallway only accessible through tampering with time and space. "Was this always here?" (Not required for Mystery Man)
room_mysteryman
This room can only be accessed when the game's fun value is set to 66. "Is he real? Was he real?"
FellSwap: Emerald Papyrus!
Beat FellSwap: Emerald Papyrus! "After the atrocities you've done, Papyrus takes it upon himself to make you fear the retribution he's about to inflict upon you with a certain method of his."
Reaper of Halloween!
Beat the Reaper of Halloween! "It has been two years since he's been seen from by another being. After his strenuous battle, you've overcome his true limits. The Force of Hallow's Eve is forever within you."
DustSwap: Dusttrust Phase 3 Sans!
Beat DustSwap: Dusttrust Phase 3 Sans! "After Sans had revived by the power of DETERMINATION, you've pushed through till the end and exhausted Sans' overwhelming power despite what he has used against you." Due to players being able to easily skip the entire battle, the event was ended early. I apologize for any inconveniences.
Undertoad: Mario's Revolution
Useless badge made to convince users that this was obtainable. Didn't expect so many people to be fooled by this. Thanks for participating in this joke event.
Game Details
- Max Players
- 25
- Created
- September 14, 2020
- Last Updated
- January 27, 2026
- Avatar Type
- MorphToR6
- Votes
- 23 Thousand up / 3.4 Thousand down
- Universe ID
- 2011181898
- Root Place ID
- 5690862508
- Sub-Genre
- Battlegrounds & Fighting
- Copying Allowed
- No
- Screenshots
- 5
- Data Updated
- February 27, 2026
Creator
flygeil
User
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