In The Groove cheats and cheat codes for Playstation 2

All songs and courses:
Press Up, Right, Up, Right, Left, Down, Left, Down, Up, Right, Down, 
Left, Up, Left, Down, Right in the main menu. Sparkles will appear 
to confirm correct code entry.

Good ending:
Press Up, Up, Down, Down, Left, Right, Left, Right in the main menu. 
Sparkles will appear to confirm correct code entry. Complete a 
round to watch the ending. 

Disconnected Hyper song:
Press Left, Right, Up, Down, Left, Left, Right, Right in the main menu. 
Sparkles will appear to confirm correct code entry.

Unlock Bonuses:
Complete the indicated number of songs:

10 songs - Disconnected Hyper song
20 songs - Bounce marathon
30 songs - Tell song
40 songs - Bumpy modifier
50 songs - Anubis song
60 songs - Outer World marathon
70 songs - Bubble Dancer song
80 songs - Beat modifier
90 songs - Disconnected Mobius song
100 songs - Liquid Moon song (In The Groove 2)
110 songs - Don't Promise Me song (Happiness Comes Mix) 
120 songs - Funk Factory song (In The Groove 2)
130 songs - DJ Party song
140 songs - Tribal Style song (In The Groove 2)
150 songs - Infection song
160 songs - The Legend marathon
170 songs - Pandemonium song
180 songs - Incognito song (In The Groove 2)
190 songs - Xuxa song
200 songs - Wake Up song (In The Groove 2)

Different credits:
Complete the final song in any mode with a full combo.

View Developer Ending After Playing:
Press Up, Up, Down, Down, Left, Right, Left, Right.