How To Make Undertale Fullscreen on Mac And Windows

There are a lot of people having trouble playing Undertale because they can’t get it to run in fullscreen mode on their PCs or they can’t figure out how to make it work in fullscreen mode.

Fortunately, there are a number of ways to fix the problem of Undertale not working in fullscreen mode. Even though the fullscreen button is removed or greyed out on the window in this guide, we have shown the possible keyboard keys that will enable you to maximise the size of Undertale according to your machine’s specifications.

Windows and Mac OS both include techniques for forcing a game to start in fullscreen mode. Open the game in fullscreen by following the steps below in the right sequence for your computer.

How to Make Undertale Fullscreen Windows 10, 8, 7?

Users who are playing Undertale on a Windows PC/laptop should follow the shortcuts listed below, and if one of these shortcuts does not work for you, try one of the other options:

Hit the F4 button

The F4 key is a function key found at the top row of the keyboard, and hitting it will maximise the window and make the game appear in fullscreen mode on your computer.

Hit FN + F4 keys

Some computers, particularly laptops, will not respond to the F4 key alone, despite repeated pressing of the key (HP laptops). As a result, you must hit the FN key, also known as the functions key, which is normally situated in the bottom right-hand corner of the keyboard, along with the F4 key.

Hit ALT + ENTER keys

This is another another handy keyboard shortcut that allows you to see the Undertake in fullscreen mode on your Windows computer. Pressing these two keys at the same time in several PC games, as well as in the Undertale, can turn the windowed mode screen to fullscreen mode.

In the Windows operating system, it is rather simple to make the game run in fullscreen. However, if you are running the game on a Mac and are wondering how to make it fullscreen on a Mac, then follow the instructions listed below.

How to Make Undertale FullScreen MAC?

Users of the MacBook Air or the MacBook Pro should use the keyboard shortcuts or instructions listed below to bring the game into fullscreen mode.

Hit CTRL + F4 keys 

The MAC systems won’t have the ALT keys, so using the CTRL or control + F4 key works for you. Instead, you can also press the F4 key individually and see if this works for you.

So, in this way you can easily take up your Undertale from Windowed screen to full-screen mode easily.

Video Guide

How do I make Undertale fullscreen?

Pressing F4 maximizes the window of the game and makes fullscreen in Undertale. Suppose you are on a laptop that maps the F keys to various functions. You may have to use the laptop’s “fn” key combined with the F4 key in Undertale. That is a command that makes Undertale fullscreen on Window

How do I make Undertale fullscreen on my laptop?

F4 – Pressing F4 should maximize the game window and make it fullscreen. FN + F4 If you are on a laptop that maps the F keys to various functions, you may have to use your laptop’s “fn” key in combination with F4. Alt + Enter – This is another command that should make Undertale fullscreen.Mar

What is Undertale fandom?

Undertale’s stigma as a toxic fandom arose after incidents involving harassed YouTubers, pornography, and fans who plastered the internet with in-game jokes. Over time, a game that started out as heartwarming and lovable gained infamy for supposedly having one of the worst fandoms on the internet.

Conclusion

That’s all there is to it for how to make Undertale run in fullscreen on Windows and Mac OS. Many users have verified that the Undertale fullscreen feature is not functioning, and this is a frequent issue that has been reported by many people.

Anyway, I’ve included a list of the shortcuts that are effective for playing Undertale in fullscreen on your operating system. Make careful to follow the steps in the list one by one so that the issue may be resolved quickly.

Bryan V. Root
Bryan V. Root
Articles: 460

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