Complete the following achievements to unlock Xbox Live Gamerscore points.
Additionally there are six secret achievements, all of which are currently unknown.
| Unlockable: | How to Unlock: |
| 1,000 Cookies (40 points) | Obtain 1,000 Cookies. |
| 10 Cousins (5 points) | Find 10 Cousins. |
| 10 Presents (5 points) | Collect 10 Presents. |
| 100 Cookies (5 points) | Obtain 100 Cookies. |
| 20 Cousins (10 points) | Find 20 Cousins. |
| 20 Presents (10 points) | Collect 20 Presents. |
| 30 Cousins (20 points) | Find 30 Cousins. |
| 30 Presents (20 points) | Collect 30 Presents. |
| 40 Cousins (40 points) | Find 40 Cousins. |
| All Cousins (80 points) | Download stages and find all Cousins. |
| All Presents (80 points) | Download stages and collect all Presents. |
| All Requests (60 points) | Complete all Requests. |
| Astronomic Katamari (90 points) | Download stages and make a Katamari over 1,500,000km. |
| Big Katamari (10 points) | Make a Katamari that's 30m or more. |
| Collection 20% (5 points) | Roll up 20% of the Collection. |
| Collection 40% (10 points) | Roll up 40% of the Collection. |
| Collection 60% (20 points) | Roll up 60% of the Collection. |
| Collection 80% (40 points) | Roll up 80% of the Collection. |
| Colossal Katamari (60 points) | Make a Katamari that's 10,000km or more. |
| Frequent Online Roller (10 points) | Play online 10 times. |
| Jumbo Katamari (20 points) | Make a Katamari that's 500m or more. |
| Manic Roller (20 points) | Hint: Running into walls will destroy your Katamari. |
| Mini Katamari (5 points) | Make a Katamari that's 30cm or more. |
| Non-stop Roller (30 points) | Hint: Roll through the course without stopping once. |
| Online Roller (5 points) | Play online. |
| Quick Turner (10 points) | Hint: Use Quick Turn to your advantage. |
| Request x 3 (5 points) | Complete 3 Requests. |
| Request x 6 (5 points) | Complete 6 Requests. |
| Request x 9 (20 points) | Complete 9 Requests. |
| Resident Online Roller (40 points) | Play online 50 times. |
| Responsible Roller (30 points) | Hint: Roll through the course without bumping into any objects. |
| Small Katamari (5 points) | Make a Katamari that's 1m or more. |
| Sorta Big Katamari (5 points) | Make a Katamari that's 5m or more. |
| Speedy Roller (10 points) | Hint: Zip through the course with Dash. |
Get 100 points on a level to unlock endless mode for it. Now you can just roll around with no time limit or goal.
Formal OutfitTo unlock the Formal Outfit present, collect 100% of the items. On most cousins, it resembles the king's clothes.
