before i lost my save somehow the heat achievement was the only one i had left to get, to get fear i believe you need to get the negative hearts (4th colour)
Viewing post in Loop Train: Having Some Fun with Her and my Hypno-App! comments
It would be good if we had a bit more information on the different moods and what causes them, even if just as a tooltip/hint on the achievements.
For example, "Fear" sounds like it might come from getting multiple areas in a row locked off from going beyond the purple hearts, while "Heat" sounds like edging her without letting her orgasm (which gets harder to do as the touching level goes up...)