Restore life
During a game, tap R repeatedly using an unchanging rate or rythm. You may have to experiment with the speed of your tapping to get the right rythm.
Globox Disc access (multi-player level)
From the Main Menu, hold L + R and press B (x4).
Map bonus
At the end of each leve, before the "Access denied" message appears, press A, B, X, Y, X, Y.
Kaleidoscope textures
Press Down, A, Down, B, A, Y, X (x2).