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.
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