Link mode
 
 Select game or solo mode, then press Left(2) or Right(2).
 
 
 Emi without a hat
 
 Highlight game mode, solo mode or workout mode at the selection 
 screen. Then, hold Right and press X. During game play Emi will 
 appear without a hat.
 
 
 
 Under Yuni's skirt
 
 Select "Yuni" from hidden collection. During the game, you can see 
 up her skirt.
 
 
 
 Hidden songs
 
 Select game or solo mode. Play three songs to unlock a hidden song. 
 Next, play different songs in a different order, then play the secret 
 song as the third song. Try again if this does not work the first 
 time. The secret songs will be highlighted in green and will be 
 marked "NEW!" Note: All of your songs must have a Grade B or higher. 
 When you get all the songs you will have twenty hidden songs. The 
 following are all the secret songs you should have:
 
 
 
 
 1. Absolute
 2. AM-3P 303 Bass Mix tkz remixed by U1
 3. Can't Stop Fallin' in Love
 4. Dive
 5. Drop Out
 6. DXY!
 7. Do It Right
 8. Genom Screams
 9. Healing Vision 
 10. Holic
 11. Leading Cyber
 12. La Senorita Virtual
 13. Let the Beat Hit Em' (Classic R&B Style)
 14. Matsuri JAPAN
 15. Orion . 78 (AMeuro-MIX)
 16. Paranoia Rebirth
 17. R3
 18. Superstar
 19. Trip Machine (Luv Mix)
 20.Era (Nostal Mix) 
 
 
 Note: These songs are in alphabetical order and not in order that 
 they are unlocked.