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.
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 We do not publish numbers we have not measured.
| 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
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
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.