Undertale Fighting Arena 2.5

A Roblox experience owned by Friendship Inc.

Fighting & PvPENUndertaleFightingBoss Rush

Description (written by the developer; not a statement by this register)

This game may contain flashing lights, and at times, very loud audio. Play with caution. (THIS IS A RECREATION/REMAKE OF UNDERTALE FIGHTING ARENA 2 BY TheCh1knLord) Hey, welcome to this fighting game. mega thx to ulaska/testaccount412452 There are 2 ways to grind: -Killing other people. -Defeating bosses that spawn every 10 Minutes. Credits: hexa/1ts_hexa: Owner TheCh1knLord: Creator of the original game chair/SnacksInHarlem: Co-Owner bandu was found dead in o block viru/TheTrueSigmaOfAllat: Developer Other/Othertd: Developer nate/theboyofawesomepower: Contributor time/botakmenhilang30: Contributor tags ok: UFA2, Undertale Fighting Arena 2, UFA2.5, TheCh1knLord, SAB, Sans Air Battles

Last updated by the developer 24 Jul 2026, 10:41 UTC.

playing (measured 13 Aug 2026, 23:49 UTC)

7,346

lifetime visits

50%

liked (18 👍 / 18 👎)

favourites (5.9 per 1k visits)

3 July 2025

created (per Roblox)

Play on Roblox →

Live players over time

Growth

Growth history is still building. We hold one measurement for this entry. A trend needs at least two, taken days apart — so this will fill in on its own rather than being estimated. We do not publish numbers we have not measured.

Measurement log — every players count we have recorded
Measured (UTC)	Players	Change
13 Aug 2026, 23:49	0	first reading

Concurrent players at each of our measurements (insert-on-change).

Monetization — game passes

PATRIOT SANS!

750 R$

2x SOULs

675 R$

Storyshift Chara.

500 R$

Lost!Reaper!Fell Chara.

250 R$

Game passes for sale and their prices, measured from the Roblox passes API. Developer products bought inside the game aren’t publicly listable.

Badge funnel

head · collection60 · 0.00% win

DEFEATED THE SYSTEM CORRUPTOR · progression15 · 0.00% win

PHOTONEGATIVE SANS · other14 · 0.00% win

PATHWAY TO INSANITY10 · 0.00% win

Triple the Threat · progression6 · 0.00% win

KILLERDUST Checkpoint · progression5 · 0.00% win

Beat him. · progression4 · 0.00% win

How many players have ever earned each badge — a proxy for how far players get before they stop. Steep drop-offs mark where a game loses people. Win rate is the past-day share of players who earned it; categories are assigned by a language model from each badge’s own name and description.

Like ratio over time

Growth

2 measurements spanning 40 days, net -1. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 50–51 and does not start at zero.

Measurement log — every % liked count we have recorded
Measured (UTC)	% liked	Change
26 Sept 2026, 17:07	50	-1
17 Aug 2026, 15:30	51	first reading

Percentage of votes that are likes, at each of our measurements. A falling line is a game losing its crowd’s goodwill.