Undertale/To do

This is a sub-page of Undertale.

"to-do" Overview

• For a fourth wall bending game like this, it should be no surprise there's a lot of hidden stuff in the code.
• The OS X version is about 30 MB bigger (1/23/2022: pretty sure this is not a comparsion with the data.wins) than the Windows version, see if there's any more in there.
• A new patch has been released on the beta branch. Note any differences. A good place to start is here. 1/23/2022: Pretty sure the 1.001 changes are documented now. --Dobby233Liu (talk) 15:40, 23 January 2022 (UTC)
• A reminder to anyone looking at this page that there's a lot of stuff not listed here that is listed in the To do sections on the main page and the subpages.Eldomtom2 (talk) 16:42, 25 August 2023 (UTC)

Unused Sprites

Sprites which haven't been seen in the game. Some are obviously tests, while others don't seem to be. Each one has a description by it. They simply need to be uploaded.

Bullet Minigame Unused Sprites?

Are the below two for the unused bullet minigame that's referenced in the strings?

spr_text_missionfailed_0.png

spr_text_shot_0.png

Most likely they were not going to be used in Game Under, as other spr_text sprites are referred to in the shootguy minigame; These two sprites are unreferenced certainly --Dobby233Liu (talk) 09:53, 29 July 2023 (UTC)

Unused/Old Debugging Code

(Didn't really know where to put this, so I'm throwing it here.)

File gml_Object_obj_gameover_test_pl_Draw_0 in the code shows this. It seems like this was to test dying. Reading the code a little can show dying with less than or equal to 0 HP will give "Game Under" text somewhere in the top (maybe top-left?) of the screen, and dying with anything else would display "Big Wienener Zone." in its place and "Hall of Failure." near the bottom. Though, I have no clue where the game is trying to put the text at the bottom (the text talking about pressing spacebar and stuff). The stuff in the middle seems to show why you died without getting at or below 0 HP, though not entirely sure. This was taken from the Nintendo Switch version 1.09 update, though I doubt the file isn't on any other versions/platforms of the game. Still, wouldn't hurt to check.

This could possibly have been used for when Toby Fox was testing how dying in battles worked, to make sure it worked properly.

Kinda in the Unused Text page, the object needs documentation though --Dobby233Liu (talk) 15:38, 23 January 2022 (UTC) There's also a little bit of proof in the code that this is related to Mettaton EX --Dobby233Liu (talk) 15:47, 23 January 2022 (UTC)

Unused Tiles

a lot of tiles in some main tilesets just go unused, Toby fox even mentioned this in the artbook, there are a lot of unused tiles in the Waterfall tileset as well as Hotland tileset to be added.

Naming the Fallen Human

This seems like a regular bug, not an oversight. And doesn't the game crash if you put in Gaster in the PC version?--Eldomtom2 (talk) 20:07, 2 February 2023 (UTC)

On PC the game restarts, instead of causing GM's FATAL ERROR screen to appear (as the PS4 ver used to) --Dobby233Liu (talk) 09:50, 29 July 2023 (UTC)

At this point making a page under the Bugs namespace would make sense --Dobby233Liu (talk) 09:55, 29 July 2023 (UTC)