Collect the Earthcaller

Kill over 100 enemies

You bested your opponents in the bar fight.

Build a combo of 16 or over

You completed your first ambient freeplay event.

Cure your need for fever with Extreme Fever.

Clear the Arcade Battle in Offline Mode.

Defeat 20 enemies with hand-to-hand combat

Dance with four elephants around the chair.

Use all Modes at least once in a session.

Upload some music to your system, play that music while playing with detuned, and maximize one of the distortive sound effects.

Read the… Help Screen.

Use the right stick to crank up an effect.