Barrels continue →
Stand in front of a barrel, then press X or Circle to turn it into items, such as string, red legion, rock sugar, fest rock, etc.
To unlock a bonus at the main menu, go to the Collectors Caravan and talk to the collector named Lector. She will talk about items that you have acquired. Then, Popo will lecutre you about the item list. When he is done, talk to Lector once again. You will now see the item mission that you have completed, or the right items you have collected. Once you have finished one of the missions, talk to Lector to unlock an introduction or picture in the bonus menu.
Art Gallery, Art 01: Show Lector at least 150 items
Art Gallery, Art 02: Show Lector at least 210 items
Art Gallery, Art 03: Show Lector at least 251 items
Character Gallery, Arlin's Picture: PalmFish and Palm Snowbug
Character Gallery, Beggur: Angel Sword, Dilvine, and EdenBlade
Character Gallery, Delsus: Pretty Stained, Gogo Suit, and Silver Pants
Character Gallery, Iris: Legendary Cane, Wisdom Cane, and Divine Cane
Character Gallery, Klien: Klien's Cane and Medicine
Character Gallery, Lita: Animal Paw and Rosie Ann BunH
Character Gallery, Marietta: Stardust, Comet Jewel, and Alluring Bikini
Character Gallery, Mull: Silgis Breath and Sorcerer Support
Character Gallery, Norn: Milk and Necrotreat
Character Gallery, Pamela: Pendelock and Mini Pendelock
Character Gallery, Popo: Dunkelhite
Character Gallery, Zeldalia: Cheesecake, Chocolate Cake, and Wedding Cake
Image Gallery, Image 1 and 2: Red Pants, Passion Pants, and Bread Pants.
Image Gallery, Image 3 and 4: Drum Crackers, Crazy Bull, and Imitation Sitar
Image Gallery, Image 5: Twister Candy, Twisted Candy, and Slingshot
Image Gallery, Image 8: Fresh Sashimi and Deviled Sashimi
Image Gallery, Image 9: Invisible Gear and Micro Craft
Image Gallery, Lita: Bunny Ears, Paw Gloves, and Bunny Suit
Image Gallery, Marietta, and Image 10: Manly Fungos and ??? Bread
Movie Gallery, Iris Gallery, Midnight Illusion, and Midnight Illusion (no Subs): War Tuxedo and Sexy Robe
Movie Gallery, Karaoke: Show Lector over 300 items
Music Tracks, Albion, and Horned Enigma: Crystalite and Crystaleavy
Music Tracks, Duke Of The Heavens: Angel Quillpen, Angel Blade, and Angel Feather
Music Tracks, Hot or Cool?, and Inferno: Bomb Armor and Fire Cane
Music Tracks, Little Boy, and Alchemy And Popo: Wax, Flax Cloth, and Suxital
Music Tracks, Midnight Illusion, and A Genesis: Sweet...