Unlock Galaxy 4 team and Disco 21 stage
Complete the game in team mode.

Unlock Discos Estrus team and Muscle Stadium stage
Complete the game two times.

Unlock Jumbo Max team and 79 Street stage
Complete the game three times.

Unlock Far East Commanders team and Iga Base stage
Complete the game four times.

Sound select option
Complete the game four times in team mode. This option allows selection of a normal or remixed version of a song. Complete the game five times in team mode, highlight "Remix", then hold L1 + R1 and press Circle to get more mixes.