New Super Mario Bros Wii World 9 unlocks and Star Coin checklist
Unlock the bonus world and identify the coin set for each bonus course.
Edition covered
Original Wii edition. Later New Super Mario Bros. U, Deluxe and Newer fan modifications are outside these guides.
Finish the main adventure first
World 9 opens after completing the final castle in World 8. Its eight courses then require the Star Coins from their corresponding numbered worlds.
| Bonus course | Required coin set | Additional condition |
|---|---|---|
| 9-1 | All World 1 Star Coins | World 9 available. |
| 9-2 | All World 2 Star Coins | World 9 available. |
| 9-3 | All World 3 Star Coins | World 9 available. |
| 9-4 | All World 4 Star Coins | World 9 available. |
| 9-5 | All World 5 Star Coins | World 9 available. |
| 9-6 | All World 6 Star Coins | World 9 available. |
| 9-7 | All World 7 Star Coins | World 9 available. |
| 9-8 | All World 8 Star Coins | World 9 available. |
Use the one-world-to-one-course rule
Collecting every Star Coin in World 1 unlocks 9-1, and the same pattern continues through World 8 and 9-8. You do not need all eight sets to open the first eligible course.
| Missing progress | Check | Next step |
|---|---|---|
| A coin slot | Course coin display | Replay for that pickup. |
| An unreachable course | Map routes | Investigate secret exits. |
| A locked 9-x course | Matching world’s coin total | Complete that set. |
| World 9 itself | World 8 final castle | Finish the main ending. |
Check the individual course icons
Use the map’s coin record to find missing pickups. Replay a course for the missing coin rather than repeating an entire world without a checklist.
Keep alternate exits in the completion plan
Some routes and courses depend on hidden exits. A coin collection sweep can therefore require finding the path to a course first.
Use the map’s coin record to find missing pickups. Replay a course for the missing coin rather than repeating an entire world without a checklist.
References
| Reference | Website |
|---|---|
| Super Mario Wiki: New Super Mario Bros. Wii | www.mariowiki.com |