Seasonal Spheres is the 5th course in Mario & Flybro: The Mysterious Mansion. This course has two versions to it, referred to as Summer and Winter.
Counterintuitively, the Stars with Summer in their name are located in the blue version of this course (left warp), and Stars with Winter in their name are located in the orange version of this course (right warp).
Stars[]
Act 1: Star 1 Summer[]
Enter the course via the left warp. This Star is at the top middle of the blue course. To reach it, Mario will need to perform a series of wallkicks, with some being against one of the towers, and some horizontal and diagonal wallkicks along the top.
Act 2: Star 2 Summer[]
Enter the course via the left warp. This Star is at one of the highest points in the blue course, and is on top of a slippery roof. Mario will need to perform a series of wallkicks to reach it.
Act 3: Star 3 Summer[]
Enter the course via the left warp. [More needed]
Act 4: Star 1 Winter[]
Enter the course via the right warp. This Star is at the top of the course, and will require Mario to wallkick up some of the central structures to reach it; it's not a Star that's easy to see until you have a high enough vantage point so it may be missed when looking for Stars.
Act 5: Star 2 Winter[]
Enter the course via the right warp. [More needed]
Act 6: Star 3 Winter[]
Enter the course via the right warp. [More needed]