Hey fellow Final Fantasy VII strategist! When it comes to materia management, I recommend focusing on leveling up your most essential materia first, such as HP Up, Magic Up, and Elemental for defense. For mission walkthroughs, always make sure to explore every corner to find hidden items and secrets. When it comes to character development, don’t neglect any party member – each has unique strengths that can be maximized through proper materia combinations. Happy strategizing!