Unlock sound test and movie viewer:
Finish all stages except for the Eternal stages.
After, press Triangle at the Earth screen will unlock the Moon Memorial.
Unlockable levels:
Build the ball up over the indicated size:
Eternal 1 stage: Over 1m, 32cm, 3mm on the Make A Star 4 stage.
Eternal 2 stage: Over 25m on the Make A Star 8 stage.
Eternal 3 stage: Over 800m on the Make The Moon stage.
Moon Memorial:
Finish the Make the Moon stage.
Unlock Shooting Stars:
Viewing a particular constellation on the Prince's homeworld by meeting
the katamari's diameter within the following time limits:
Less than 1 minute - Star 1
Less than 3 minutes - Star 2
Less than 4 minutes - Star 3
Less than 6 minutes - Star 4
Less than 8 minutes - Star 5
Less than 8 minutes - Star 6
Less than 8 minutes - Star 7
Less than 12 minutes - Star 8
Less than 15 minutes - Star 9
Less than 20 minutes - Moon
Unlock Presents:
Scarf #1 - Make a Star 2.
Chef Hat - Make a Star 3.
Winner's Belt - Make a Star 4.
Camera - Make a Star 5.
Headphones - Make a Star 6.
Apron - Make a Star 7.
Guitar - Make a Star 8.
Garland - Make a Star 9.
Mask - Make the Moon.
Rubber Duck - Make Cygnus.
Brown - Make Corona Borealis.
T-Shirt - Make Virgo.
Scarf #2 - Make Ursa Major.
Sumo Thong - Make Taurus.
Wig - Make the North Star.
