Note: This game is also known as - Katamari Damacy Tribute

Katamari Drive mode - Successfully complete the game, and watch the ending to unlock Katamari Drive mode. In this mode, you will control a high speed Katamari with shorter time limits.

Bonus mini-games - Successfully complete the indicated task to unlock the corresponding mini-game at the "Katamari Collection" menu:

Beautiful Katamari (Hard): Successfully complete Katamari Drive mode.
Beautiful Katamari (Normal): Successfully complete Katamari Drive mode.
Katamari Forever Ending Credits: Successfully complete the game.
We Love Katamari: Successfully complete all requests in all game modes.

Level graphics filters - Successfully complete a level to unlock the ability to change the graphic filter for that level in the game mode that was used.

Level music selection - Successfully complete a level to unlock the ability to change the music for that level in the game mode that was used.

Trophies - Successfully complete one of the following tasks to get a trophy:

Huge Katamari (Bronze): Created a katamari over 10,000km.
Big Katamari (Bronze): Created a katamari over 500m.
Stardust (Bronze): Turned a katamari into stardust.
First Katamari (Bronze): Completed a Request.
Collector (Bronze): Completed 80% of the Collection.
Cousin Friendly (Bronze): Rolled up 30 Cousins.
Fashion Conscious (Bronze): Collected 30 Presents.
Movie Fan (Bronze): Watched 5 movies in a row in Movies.
Multiplayer (Bronze): Played through VS Battle or Co-op 30 times.
Katamari Destroyer (Bronze): Destroyed the katamari 50 times before completing a Request.
Rolling Expert (Bronze): Rolled up 7,650 objects before completing a Request.
Mini-Gamer (Bronze): Played through all mini-games.
Music Lover (Bronze): Listened to 5 songs in Music.
Photographer (Bronze): Viewed a photo in the Photo Album.
Enormous Katamari (Silver): You made a katamari over 2,000,000km!
Endurer (Silver): Obtained 50,000 points in the punishment mini-game.
Hi-Scorer (Silver): Obtained 50,000 points in the ending mini-game.
Congratulations! (Gold): Completed all Requests in Katamari Forever mode.
Katamari Speedster (Gold): Completed all Requests in Katamari Drive mode.
Completist (Gold): Completed 100% of the Collection.
We Love Cousins (Gold): Rolled up all Cousins.
Present Collector (Gold): Collected all Presents.
Platinum Katamari (Platinum): Collected all trophies.

Additionally, there are ten secret trophies:

Rankings Lover (Bronze): Viewed the Network Rankings 5 times.
Single Player (Bronze): Played though 50 single player Requests in a row.
Hopper (Bronze): Performed the Prince Hop exactly 7 times before completing a Request.
Fast Roller (Bronze): Performed the Dash exactly 6 times before completing a Request.
Quick Turn Expert (Bronze): Performed the Quick Turn exactly 5 times before completing a Request.
Unforgiving (Bronze): Punished over 50 times.
Creator (Silver): Created 200 katamaris.
We Love Stardust (Silver): Turn 50 katamaris into dust.
Eternal Roller (Silver): Completed all Requests in Eternal mode.
Katamari Fanatic (Gold): Completed all Requests in Classic Katamari mode.