I believe there's going to be 3 endings like in Undertale
>Normal/False Pacifist/False genocide (Predetermined Fate)
>True Genocide/Snowgrave/Weird (the corruption of Noelle By the SOUL)
>True Pacifist/Shadow Crystal/Schizo (Pacifist but with secret bosses in tow)
I'm not sure how the Eggs will play in this but considering the only way you can even access some of them is through NOT going down snowgrave I can safely say it's part of the True Pacifist route

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