In The Groove

# Cheat mode

At the main menu, press Up, Right, Up, Right, Left, Down, Left, Down, Up, Right, Down, Left, Up, Left, Down, Right to unlock all courses, songs, and modifiers. If you entered the code correctly, sparkles will appear.
# Disconnected -Hyper- song

At the main menu, press Left, Right, Up, Down, Left(2), Right(2) to unlock the Disconnected -Hyper- song. If you entered the code correctly, sparkles will appear.
# Good ending

At the main menu, press Up(2), Down(2), Left, Right, Left, Right. If you entered the code correctly, sparkles will appear. Then, complete a round to view the game's good ending.
# Alternate credits

Successfully complete the last song in any game mode with a full combo and the credits will include photographs of the development team and test location.
# Bonuses

Complete the indicated number of songs to unlock the corresponding bonus:

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