How to Change Health in Undertale
If you're feeling a bit hacky, you can edit your save file using a text editor. Look for 'file0' and 'file9' in the game's directory and change the value next to 'HP' to what you desire. But be careful, cheating can spoil the fun!
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You can't really change your health in Undertale directly, but you can equip items like the Torn Notebook and Cloudy Glasses to increase invincibility frames. Also, make sure you're eating lots of tasty heals like Butterscotch Pie and Spider Donuts during battles!
I once changed my HP by using a mod called 'Undertale Mod Tool.' It allows you to tweak almost everything, but remember, mods can break your game!
You can't change health at will; it's part of what makes Undertale challenging and awesome. Try focusing on dodging attacks instead!
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