Part of Deltarune's charm lies in being able to take in its unique visuals, look closely for any secrets, and immerse yourself in its world. By default, though, it'll launch with a small, minimized screen, with no clear indicators on how to enter fullscreen.
Fortunately, not all hope is lost. There are a few quick and easy ways to enter fullscreen mode while playing Deltarune on any platform. That way, you'll be able to see everything regardless of whether you're new and trying out the game for the first time or a returning player hopping into a newly released chapter.
