Cruise Stages and patterns...
	Gold Dolphin...

To unlock new Cruise Stages, play the preceding Cruise Stage and exit. You should get a message saying that you have unlocked new sounds. Go to the Groove Editor and exit (you don't have to change the Groove, just open it, but you can I'd you want) Then replay the same Cruise Stage, and you should be prompted to change to the next Cruise Stage by pressing R1. Repeat this process to unlock more patterns.

Unlockable	How to unlock
Stage 02: Abyss	Play Peace, exit, play Peace again, then change when prompted.
Stage 03: Wire	Play Abyss, exit, play Abyss again, then change when prompted.
Stage 04: Crystal	Play Wire, exit, play Wire again, then change when prompted.
Stage 05: Tube	Play Crystal, exit, play Crystal again, then change when prompted.
Stage 06: Temple	Play Tube, exit, play Tube again, then change when prompted.
Stage 07: Space	Play Temple, exit, play Temple again, then change when prompted.
Stage 08: Flower	Play Space, exit, play Space again, then change when prompted.
Stage 09: Woods	Play Flower, exit, play Flower again, then change when prompted.
Stage 10: Shell	Play Woods, exit, play Woods again, then change when prompted.
Stage 11: Coral	Play Shell, exit, play Shell again, then change when prompted.
Stage 12: Garden	Play Coral, exit, play Coral again, then change when prompted.

At the title screen highlight Start and press Down, Up, Right, Left, Square.