Hey there, fellow Final Fantasy VII strategist! When it comes to materia management, I recommend focusing on leveling up the essential materia like Restore, Lightning, and Fire. Make sure to link them with Support materia like Magnify or Elemental for added effects.

For mission walkthroughs, always explore every nook and cranny to find hidden items and materia. Don’t rush through battles, as strategic planning is key to victory. When facing tough bosses, make use of status-inflicting materia to gain the upper hand.

In terms of character development, don’t neglect any character in your party. Each one brings a unique skill set to the table, so rotate them often to ensure they all level up evenly. Experiment with different materia combinations to suit each character’s strengths.

Remember, patience and strategy are your best friends in Final Fantasy VII. Good luck on your journey through Midgar and beyond!