If you've downloaded the game Undertale from Steam to your Windows PC or Mac computer or laptop, then you might be wondering how the heck you tin make it big.

At that place'southward nothing quite every bit frustrating as wanting to play your game fullscreen and non knowing how to maximize information technology's size on your reckoner.

Are you having trouble figuring out how to go fullscreen with Undertale? I was confused at offset likewise because when I outset ran the game information technology was locked in a small windowed mode.

undertale game

So, information technology took me a infinitesimal to figure out this bug, but it'south actually a super easy process to become full screen. Plus, you can probably use with any other game that has a small screen window on your laptop.

Hither'south how to brand Undertale full screen…

4 Ways To Get Undertale Full Screen

Based on my own testing and research, I take found that in that location are 4 different ways that yous can get from that small screen version of Undertale to a fullscreen version that brand utilise of your unabridged screen space.

undertale game

Keep in mind that if i of these does not work for you, then just try i of the other options. And if none of these options work for you, and so just go out me a comment and I'll see if I tin help you out.

  1. Press the F4 button. This is called a function key and all of your part keys are located on the superlative row of your keyboard.
  2. Printing the FN and F4 buttons at the same time. The FN, or office button, is unremarkably constitute on the lower corner of your keyboard. On Mac computers, information technology will be in lowercase like this: fn
  3. Press the ALT and ENTER buttons at the same fourth dimension. When you lot press these ii buttons together, they switch you from pocket-size screen to full screen style, no affair what game or program that yous are running. Note: the ENTER button is chosen Render on some keyboards.
  4. Press the CTRL + F4 buttons at the aforementioned time. Since Mac computers don't take ALT keys, yous have to use the CTRL, or command, central instead. Of form, F4 typically works by itself on a Mac.

keyboard

One of those methods should be all y'all need to take your game from Undertale from bite-sized to full-sized on your laptop or computer screen.

FAQs Well-nigh Undertale Fullscreen

Here's the answers to some mutual questions related to this.

Is this a bug in the game?

While the game developers have non officially acknowledge this as a bug that needs stock-still in Undertale, players can agree that it is a bug that affects game play.

Luckily, there is the piece of cake fix mentioned in a higher place.

undertale game

Why do I have to press FN with my F4 key?

This happens most often with laptops because a laptop typically has a smaller keyboard than a desktop computer, which means less space for keys.

As a result, that row of function keys serve a variety of purposes and to use them as traditional function keys you lot take to first press the FN key.

How to brand Undertale full screen on Windows 10?

Unlike the previous versions of Windows, when your press F4 in Windows 10 it will not take your game total screen. Instead, it opens up the Projection screen for you lot.

And then, to go Undertale full screen on Windows 10 you have to utilise ALT+Enter at the aforementioned fourth dimension to take over the entire screen.

windows 10 project screen
Windows 10 Projection screen after pressing F4

Undertale is a video game about a child who falls into an underworld filled with monsters. FIGHT or ACT your way through battles while dodging magic bullet attacks.

Every monster has unique attacks and personality—and they're all in your way. You tin bear witness them MERCY if y'all want.

Yous might fifty-fifty make friends. Just what will y'all practise if you see a relentless killer?

Undertale is available in English and Japanese for Windows, Mac, Linux, PS4, Vita, and Switch.