Geo-Thermal Plant stage

Successfully complete Arcade mode to unlock the Geo-Thermal Plant stage.

Bonus characters
Successfully complete Chronicle mode, then complete one of the following task to unlock the corresponding Boss character:

Alpha-152: Successfully complete Mission 19 in Tag Challenge mode.
Genra: Successfully complete Mission 18 in Tag Challenge mode.
Kasumi Alpha: Successfully complete Mission 16 in Tag Challenge mode.
Raidou: Successfully complete Mission 20 in Tag Challenge mode.
Shiden: Successfully complete Mission 20 in Tag Challenge mode. To select him, hold L + X and press A on the ‘Random’ option at the character selection screen.
Tengu: Successfully complete Mission 17 in Tag Challenge mode.

Alternate costumes

While selecting the listed character at the character selection screen, hold the indicated buttons, then press A to use the corresponding costume:

Kasumi Alpha (braid): Press L + X.
Kasumi Alpha (high ponytail): Press R + X.
Kasumi Alpha (low ponytail): Press L + R + X.
Kasumi (braided hair): Press L + X.
Kasumi (high ponytail): Press R + X.
Kasumi (low ponytail): Press L + R + X.
La Mariposa (no mask): Press L + X.
Lei Fang (side braids): Press L + X.
Lei Fang (short ponytail): Press R + X.
Random select (Shiden costume 1): Press L + X.
Random select (Shiden costume 2): Press R + X.
Random select (Shiden costume 3): Press L + R + X.

Character menu voices

Play and win one round in Survival mode to unlock the character menu voices