Undertale Boss Battles - Classic

A Roblox experience owned by Undertale: Legacy.

RacingENUndertaleBoss FightRPG

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

Experience a classic Undertale game from 2016! Fight with old combat based on some Undertale characters! Have a nice stay! DISCLAIMER: These scripts were ported over from the days before Filtering Enabled exist, most things should work but theres always a chance something doesn't!

Last updated by the developer 9 Jan 2026, 03:12 UTC.

playing (measured 11 Aug 2026, 16:07 UTC)

6,680

lifetime visits

91%

liked (105 👍 / 10 👎)

301

favourites (45.1 per 1k visits)

17 February 2018

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 We do not publish numbers we have not measured.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
11 Aug 2026, 16:07	0	first reading

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

Monetization — game passes

Doggy Donations

2 R$

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