How to Go Full Screen on Undertale Fangames
Usually, pressing F4 will toggle full screen for fangames made with RPG Maker or GameMaker, which many Undertale fangames use.
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Not all fangames have a fullscreen option. If none of the shortcuts work, you might be out of luck.
Easy peasy! Just press Alt + Enter while in-game. Works like a charm for most Undertale fangames!
From my experience, if Alt + Enter or F4 don't work, check the game's settings menu for a fullscreen option. Some games hide it there!
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