Download The Undertale Souls Images. And their traits (respectively) are determination patience bravery integrity perseverence kindness justice. So the colors of the souls are red aqua orange blue purple green yellow.
As the books say in undertale, the hatred and determination and lasting soul power of the humans is what makes them so strong in battle.
The red human soul is the most powerful. 192 likes ยท 4 talking about this. That's all i have on my guide for the human souls in undertale. 4.7k reads 349 votes 36 part story.