If you think you can get all 242 stars in Super Mario Galaxy 2 on your own, you've got another think coming. It's a lot harder than it looks. Sure, getting those first 120 normal stars seem like an easy enough task, but finding all of the remaining 120 green stars is the hard part. But then you have those last 2 that are even tougher.
To get you on your way, concentrate on World 1 of Super Mario Galaxy 2, featuring Sky Station, Yoshi Star, Spin-Dig, Fluffy Bluff, Flip-Swap and Rightside Down Galaxies, along with Bowser Jr.'s Fiery Flotilla. Once you get all the stars in World 1, move on to the next World.
1. Sky Station Galaxy - Peewee Piranha's Temper Tantrum & Comet Medal 2. Sky Station Galaxy - Storming the Sky Fleet 3. Sky Station Galaxy - Peewee Piranha's Speed Run 4. Yoshi Star Galaxy - Saddle Up with Yoshi & Comet Medal 5. Yoshi Star Galaxy - Spiny Control 6. Yoshi Star Galaxy - Spiny Rainbow Romp 7. Spin-Dig Galaxy - Digga-Leg's Planet & Comet Medal 8. Spin-Dig Galaxy - Silver Stars Down Deep 9. Spin-Dig Galaxy - Digga-Leg's Daredevil Run 10. Fluffy Bluff Galaxy - Search for the Toad Brigade Captain & Comet Medal 11. Fluffy Bluff Galaxy - Every Planet Has Its Price (Secret Star) 12. Fluffy Bluff Galaxy - The Chimp's Stomp Challenge 13. Flip-Swap Galaxy - Think Before You Shake & Comet Medal 14. Flip-Swap Galaxy - Purple Coin Flip 'n' Sprint 15. Rightside Down Galaxy - Breaking the Laws of Gravity & Comet Medal 16. Rightside Down Galaxy - The Great Crate Incinerator (Secret Star) 17. Bowser Jr.'s Fiery Flotilla - Gobblegut's Aching Belly & Comet Medal 18. Bowser Jr.'s Fiery Flotilla - Fiery Flotilla Speed Run
Don't forget to check on the other Worlds in the NextGenWalkthroughs guide to all 242 stars: