Welcome to Super Mario Galaxy 2 – Unofficial Complete Guide & Walkthrough (2025 Edition) Your ultimate companion to exploring every corner of the cosmos! Whether you’re taking flight for the very first time or returning as a seasoned Star hunter, this comprehensive fan-made guide is built to help you master every level, collect all Power Stars, and uncover every hidden secret scattered across the galaxies. Step into Mario’s most imaginative interstellar journey, where creativity, gravity, and wonder collide in one of Nintendo’s most beloved adventures. From Yoshi’s new abilities to breathtaking worlds filled with inventive platforming challenges, Super Mario Galaxy 2 continues to push the boundaries of the Super Mario universe. Inside this detailed walkthrough, you’ll find everything you need for a 100% completion run —fully organized, easy to follow, and filled with precise guidance. Every galaxy, boss fight, and collectible is broken down step by step to ensure you never miss a single shortcut, medal, or surprise. What You’ll Find Inside Complete Walkthrough: Step-by-step guidance through every world, mission, and galaxy — from Sky Station to the Grandmaster Galaxy. - Power Star & Green Star Locations: Discover every hidden star, comet medal, and collectible item to complete your adventure in full. - Tips & Tricks for Every Player: Expert insights for advanced jumps, motion controls, Yoshi mechanics, and speedrunning mastery. - Boss Battles & Challenges: Proven tactics for conquering every boss — including Bowser’s fiercest forms and secret encounters. - Secret Worlds & Unlockables: Learn how to unlock bonus galaxies, comet challenges, post-game content, and hidden missions. - 100% Completion Roadmap: A checklist-based progression plan ensuring you unlock everything — from Luigi missions to perfect saves. Why This Guide Exists This fan-created guide celebrates the timeless magic of Super Mario Galaxy 2 — a masterpiece that continues to inspire imagination and joy long after its release. Every section has been carefully written with clarity, accuracy, and passion to make your journey among the stars as smooth as it is memorable. Whether you’re searching for your final Green Star, perfecting your speedrun, or simply exploring the galaxies with Yoshi at your side, this book serves as your all-in-one travel companion across the universe of Mario. So grab your controller, tighten your grip, and get ready to jump, spin, and soar through the cosmos once more. Your next Power Star awaits — let’s light up the galaxies together!