Unlock Egg Vaccum:
     Beat normal story (the middle 3 stages on the map).

Unlock Samarui Blade:
     Beat dark story (the top 3 stages on the map).

Unlock Heal Cannon:
     Beat hero story (the bottom 3 stages on map).

Unlock Satelite Laser:
     Beat semi dark story (the top middle 3 stages on map).

Unlock Omochao Gun:
     Beat semi hero story (the bottom middle 3 stages on map).