Hi Hi Puffy AmiYumi: Kaznapped

Alternate costumes:
Beat the time attack mode time limit in the indicated World to unlock the corresponding alternate costume.

Bikini: World 4
Cowboy: World 1
Grass Skirt: World 2
Ninja: World 7
Pajama: World 3
Primitive: World 5
Super Hero: World 6

Encore mode:
Successfully complete World Tour mode. Note: To unlock World 7 in Encore mode, collect all instruments in World 5.

Hard difficulty:
Successfully complete World Tour mode under the normal difficulty setting.

Time Attack mode:
Successfully complete a World in Encore mode to unlock the corresponding World in Time Attack mode.

Tour Bus mini-game:
Complete World 7 in Encore mode under the hard difficulty setting.

Tour Bus mini-game machine selection:
Complete the Tour Bus mini-game from Backstage.

Bonus photos:
Collect all 99 Music Notes in a World to unlock the corresponding bonus photo for that World.

Bonus sequences:
Complete the indicated task to unlock the corresponding selection for viewing.

Ending 1: Complete World Tour mode under the normal difficulty setting.
Ending 2: Complete World Tour mode under the hard difficulty setting.
Credits 1: Complete World Tour mode under the normal difficulty setting.
Credits 2: Complete World Tour mode under the hard difficulty setting.
Prologue: Collect all instruments in World 1.

BGM option:
Collect all instruments in World 3.

SFX option:
Collect all instruments in World 4.

Puffy X-tras:
Collect all instruments in World 2.

Replay tutorial:
Successfully complete the tutorial.

Congratulations message:
Unlock All X-tras.