We Love Katamari (PS2)

Unlock The Memorial Option:
Finish the game (by successfully completing the dog's solar system stage). This option includes a movie viewer and a music player.

Unlock Second Bonus Movie:
To unlock the second bonus movie, complete the cousin collecting stage.

Unlock Staff Credits Stage:
Finish the game, and then talk to the girl with the yellow shirt to play this stage again.

Unlock Comet Stage:
Finish the game, and then talk to the astronaut to play this stage.

Unlock Cousin Collecting Stage:
Find all the cousins, and then talk to the boy with the yellow shirt to play this stage.

Unlock Million Roses Stage:
Complete the cousin-collecting stage, and then talk to the rose to play this stage.