Hey fellow Final Fantasy VII strategist! When it comes to materia management, I suggest focusing on leveling up key materia like HP Up, MP Up, and Elemental for added defense and elemental damage. Pairing Elemental with an element for your weapon can be super effective against enemies weak to that element. For mission walkthroughs, always make sure to steal from bosses for rare items and use Enemy Skill materia to learn powerful abilities. In terms of character development, prioritize unlocking Limit Breaks and leveling up materia that complements each character’s strengths. And don’t forget to explore all areas to find hidden treasures and level up your party! Good luck on your adventures in Midgar!