Description

Bring the Underground to Opera GX with UNDERTALE: Definitive Edition, an all-in-one browser mod inspired by UNDERTALE.

This mod includes 67 selectable background tracks, covering the main soundtrack, bonus tracks, 10th Anniversary music, non-OST tracks and unused music.

You can also choose from 13 keyboard sound sets, including Basic Text and character voice sounds for Flowey, Toriel, Sans, Papyrus, Undyne, Temmie, Alphys, Mettaton, Asgore, Asriel, Asriel (God of Hyperdeath), and Gaster.

Browser interactions use familiar UNDERTALE menu and gameplay sound effects, while 12 selectable wallpapers recreate the game’s border designs: Simple, Sepia, Ruins, Snowdin, Waterfall, Hotland, Castle, True Lab, Beauty, Real/Not Real, Super Dog, Hoi, and Casino. Each wallpaper also has its own matching GX theme.

Features include:

• 67 selectable background tracks

• UNDERTALE browser sound effects

• 13 keyboard sound sets

• 12 wallpapers

• 12 matching GX themes

UNDERTALE, its characters, music, artwork and sound effects were created by Toby Fox. This is an unofficial fan-made Opera GX mod and is not affiliated with or endorsed by Toby Fox.