Press Up/Left, Up/Left, Up/Left at the songselection screen.
Press Up/Left, Up/Left, Up/Left,Up/Left, Up/Left, Up/Left at the song selectionscreen.
Press Up/Left, Up/Left, Up/Left,Up/Left, Up/Left, Up/Left, Up/Left,Up/Left, Up/Left at the song selection screen.
Press Up/Left, Up/Right, Up/Left,Up/Right, Up/Left, Up/Right at the song selectionscreen.
Press Up/Left, Up/Left, Up/Right,Up/Left, Down/Left at the song selection screen.
Press Up/Left, Up/Right, Up/Left,Down/Right, Down/Left at the song selection screen.
Press Up/Left, Up/Left, Up/Right,Up/Left, Up/Right at the song selection screen.
Press Up/Right, Up/Right, Up/Left,Up/Right, Down/Right at the song selection screen.
Press Up/Right, Up/Right, Up/Rightat the song selection screen.
Assuming this diagram as the Pump it up pad:
1-----2
---3
4-----5
Put the codes at the song selection screen: