This dream may symbolize the power of friendship and the transformative effects it can have on our lives. The arcade represents a place of fun and leisure, but the fact that both you and your best friend become upset suggests that there may be some underlying tension or conflict in your relationship. However, the merging of your two selves into a new being could represent a deepening of your bond and a merging of your personalities. The new being, a beautiful insult girl with long curly hair, glasses, and a stylish outfit, may represent a new and improved version of yourself, combining the best qualities of you and your friend. The fact that she flies around and sings a nice song could symbolize a sense of freedom and joy in this new form. The reveal that she is taking over the town in a good way could suggest that this transformation is positive and beneficial for both you and those around you. Overall, this dream may be a reflection of the strong bond and positive influence of your friendship, and the potential for growth and transformation that it brings.