Bad Time Simulator: Dual Sans Fight

Released:May 13, 2025

Pit Sans against the human in a thrilling duel! One player roams as Sans, aiming bones and Gaster Blasters with the mouse, while the other dodges as the SOUL. Battle it out in a dynamic 2-player clash fueled by Megalovania.

Why This 2-Player Sans Fight Rocks

Experience a head-to-head mode where Sans moves and attacks with mouse precision:

Dynamic Duel

Player 1 controls a mobile Sans, roaming with IJKL, aiming attacks with the mouse, and dropping platforms to trap the SOUL. Player 2 weaves through bones, Gaster Blasters, and gravity shifts with arrow keys. Megalovania sets the pace for a 20-second showdown where every move counts.

Bad Time Simulator: Dual Sans Fight 2-Player Screenshot

A Fresh Sans Battle

This 2-player mode flips the classic fight into a strategic face-off:

•Mobile Sans: P1 moves Sans freely, unlike the static original.
•Mouse-Aimed Attacks: Bones and Blasters track the SOUL via cursor.
•Platform Play: P1 adds static or moving platforms to disrupt P2.
•Gravity Chaos: P1 toggles gravity to throw off P2's moves.
•Counter-Play: P2 fights back with M, making every duel intense.

Perfect for settling who's the real Undertale champ in this innovative multiplayer twist.

How to Master the Dual Sans Fight

Outsmart your opponent with these controls and strategies for the 2-player showdown:

Player 1: Control Sans

•IJKL: Move Sans around the arena to set up attacks.
•WASD: Toggle SOUL gravity to disrupt P2's movement.
•Z: Fire bones toward your mouse cursor.
•X: Summon Gaster Blasters aimed at the SOUL.
•Space: Switch SOUL color (gravity/no gravity).
•1: Change Gaster Blaster size.
•2: Switch between normal and long bones.
•C: Add a static platform.
•V: Add a moving platform.
•0: Delete a platform by touching it with the mouse.

Player 2: Control the SOUL

•Arrow Keys: Move the heart-shaped SOUL to dodge attacks.
•M: Fight back to strike Sans.
•Watch P1's cursor and Sans' position to predict attacks.

Battle Strategies

Fans say: P1 should mix gravity switches with platform traps (C/V) and aim Blasters (X) at the cursor for chaos. P2 should pre-dodge long bones, watch Sans' movement, and time M attacks after Blasters. Sync with Megalovania's beat to nail the rhythm.

Restarting

Click the green flag to reset the match and dive back into the action.

More Bad Time Trio Challenges

Mastered the dual trio fight? Test your skills in these fan-made Undertale battles:

Bad Time Simulator

The classic solo Sans battle with bone waves and Blasters.

Sans Fight Simulator: Classic Edition

A faithful remake of the original Undertale Sans fight.

Swift Bad Time Trio

The classic single-player trio battle.

Bad Time Trio: AU Trio Fight

Take on an AU trio with Papyrus, US Sans, and SS Asriel.

Infinite HP Bad Time Simulator

Practice Sans' attacks without dying.

Horrortale Sans

Battle a grim Sans in a spooky AU.

Stronger Than You

A musical twist on the Sans fight.

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Bad Time Simulator:Dual Sans Fight