Alice has Marisa's mini-hakkero, Cirno has a bat-wing shaped ice-wing AND Remilia's Gungnir, Adult!Chen is looking awfully Yukari, and Wriggle looks female... what is this i dont even...
Love how most everyone else is a composite character (Marisa+Alice, Cirno+Remilia, Chen+Yukari, Reisen+Mokou), or at least different from normal, and Yuuka is just herself.