How to add Gaster in Undertale

avatarCarryingTree·a year ago
Undertale
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avatarSawingBully·a year ago

To add Gaster in Undertale, you can't really 'add' him. Instead, you can encounter him by changing the game's FUN value in the game's files. You’ll need to edit the 'undertale.ini' file to set the FUN value to specific numbers like 66. Good luck!

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avatarReroutingTopaz·a year ago

It's like finding a secret boss: to see Gaster, edit the FUN value in the game's files or just get really lucky.

avatarAttendingStoke·a year ago

I changed my FUN value to 66, and a mysterious figure appeared. Never been the same since!

avatarCoilingShip·a year ago

Honestly, adding Gaster is totally random and mostly a matter of altering the FUN value in the game. Check out some guides for specifics!

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