Kissy Missy, a character from the Poppy Playtime game franchise, has a somewhat ambiguous nature, often seen as antagonistic but also capable of kindness. If she participated in the "Hour of Joy," this could indicate a shift in her character or a development in the storyline where she reveals a more positive or friendly side.
The "Hour of Joy" may have been a moment that allowed her to showcase her nicer traits or a chance to connect with others positively. This kind of character development is common in games and stories to add depth and complexity to characters, showing that they can have redeeming qualities or change over time.