Dancing Stage Universe Cheats (Xbox360)

If you want to unlock Dance Champion (the girl in the final dance tournament) as a
playable character defeat her in the final round of the Dance Tournament Battle.

The different songs in Quest mode are unlocked when you complete the corresponding
competition.

Unlock Tir na n'Og:

Complete the Northern Region competition. 

Unlock My Only Shining Star:

Complete the Eastern Region competition. 

Unlock Bongo!:

Complete the Western Region competition. 

Unlock Return of the Toe Jam:

Complete the Southern Region competition. 

Unlock Cachaca:

Complete the Washington special invitational event. 

Unlock Drivin':

Complete the Florida special invitational event. 

Unlock Healing Vision.

Complete the Ontario special invitational event. 

Unlock Koibito:

Complete the Texas special invitational event. 

Unlock Love Me Do.

Complete the New York special invitational event. 

Unlock Maximizer.

Complete the Nation Championship #1 competition. 

Unlock Paranoia Evolution:

Complete the Nation Championship #2 competition. 

Unlock Stop Violence!:

Complete the Missouri special invitational event. 

Unlock Think Ya Better D:

Complete the California special invitational event. 

Unlock Treble, Bass and Attitude:

Complete the Illinois special invitational event. 

Unlock Xenon:

Complete the Canadian Region competition.