Undertale > General Discussions > Topic Details
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fwugradiation  [developer] Sep 15, 2015 @ 12:04pm
Bugs and stuff
If you find a bug or another sort of error, please post it here. That'll help keep things together when I patch the game!

Known bugs:

Menu Steam -> Settings -> Beta Subscription
if you still can't run it or your file's erased email me https://undertale.com/help/

- Game opens + closes immediately --> Try closing everything else + disabling antivirus etc?
- Game opens, doesnt run, but says it's active on steam? --> steam issue? try emailing me http://undertale.com/contact.htm
- "Can not change to destination folder" --> run steam as administrator
- Unplugging USB controller crashes (solution unknown, sorry)
- game crashes on close (solution unknown, sorry)
- Acts choppy/messed when fullscreen --> GM doesn't like dual monitors, try using just 1?
- Certain controllers dont work on windows 10 --> Windows 10 might have tendency to act like there are too many controllers. Close UNDERTALE. Go to Control Panel and find controller and device settings. delete all the instances of extra [USB Gamepad]. Then rebind controls for the controller on the main menu of UNDERTALE.
- Music doesn't play no matter how many times the game/computer is restarted: https://twitter.com/FwugRadiation/status/649228355951308800
- crashes randomly or just is bad in general --> disable steam overlay?

- controller doesn't work (game maker)
- game doesn't run on El Capitan:
Navigate to UNDERTALE.app/Contents/MacOS
Run Mac_Runner
Quit Terminal once the program ends
Launch UNDERTALE from Steam normally
- game won't launch on OSX mavericks or earlier 10.9.5 or 10.7.5 --> update the game by uninstalling and reinstalling it
Last edited by fwugradiation; Jun 7, 2018 @ 2:34am
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Showing 1-15 of 4,214 comments
Unbalanced Sep 15, 2015 @ 12:46pm 
My game just does not start...I press play and it says I'm in-game, then the steam Update News window shows up and I'm not in-game.
fwugradiation  [developer] Sep 15, 2015 @ 12:49pm 
When you hit play, try waiting a couple minutes for it to start. If that doesn't work, let me know your OS...? I have not heard of this
Unbalanced Sep 15, 2015 @ 1:12pm 
Usually "Update News" popping up means the program closed out and steam knows (or at least thinks) the game has stopped. But I have waited and it's not showing up, and reinstalling, restarting, and verifying game cache haven't worked.
I'm on Windows 10. Tell me if there's anything else you need to know.
fwugradiation  [developer] Sep 15, 2015 @ 1:14pm 
Verrrrry weird. Mind sending me an email? http://undertale.com/contact.htm
Dr Gamma Sep 15, 2015 @ 1:29pm 
Is the door next to the four mushrooms you can turn on and off supposed to not be openable no matter what? This might be design rather than bug, sorry to bother with it. =P
fwugradiation  [developer] Sep 15, 2015 @ 1:30pm 
Not a bug. You're better off forgetting about that door. It will only lead you to despair.
Ogerscherge Sep 15, 2015 @ 2:08pm 
Not really a bug, but I wasn't able to rebind the keyboard controls.
It's not a big deal, since I have 360 controller, but if I had to play the game with a keyboard,
I would have a problem, since on German keyboards the "z" key is where the "y" key is on "normal" keyboards. Would be nice if one were able to rebind these.
Or maybe I did just miss the right option to do so.
Btw. great game so far! ^-^
fwugradiation  [developer] Sep 15, 2015 @ 2:13pm 
You can also use ENTER for Z, SHIFT for X, and CTRL for C if you have a foreign keyboard. At least, that's how I always played
Alphys Sep 15, 2015 @ 3:18pm 
Is there any way to change the fullscreen resolution? It's doing that thing when you force your monitor to render a resolution that isn't native and makes everything look white/wrong.
fwugradiation  [developer] Sep 15, 2015 @ 3:20pm 
Nope, it just uses gamemaker's default fullscreen. Sorry
pistacho Sep 15, 2015 @ 3:38pm 
Hey Toby, a friend and I can't seem to take screenshots at all, at least the usual steam way. Binding it to F12 or any usual key yields nothing.
Only one person has uploaded a screenshot so far, all other games screen normally, any idea?
fwugradiation  [developer] Sep 15, 2015 @ 3:40pm 
Seems like the screenshot button doesn't work. I don't know why, it might be a gamemaker thing. I'll look into it.
axxon_n Sep 15, 2015 @ 4:03pm 
When I left the ruins at the beginning, the center tiles for the trees in the foreground were partially transparent and I could see the path, background trees, and the PC through them.
Piposman Sep 15, 2015 @ 5:23pm 
Ending spoilers: After beating the crap outa da king and flowey slayer him and taking all the souls in a 100% pacifist run, the game crashes

Oh... never mind...

Edit: The game crashes if you fullscreen on the final boss
Last edited by Piposman; Sep 15, 2015 @ 5:38pm
Cirrial Sep 15, 2015 @ 5:30pm 
Every time without fail a sinewavey effect in a combat happens, regardless of scenario, the game slows to a crawl. I'm on Windows 7 and I have to wonder if it's something to do with surfaces never playing ball, but my knowledge on Game Maker is outdated to say the least.

EDIT: Same barely-playable framerate drop in a boss later on involving animation of the battlefield. Surfaces??
Last edited by Cirrial; Sep 15, 2015 @ 5:59pm
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