Kingdom Hearts 358/2 Days (Nintendo DS)

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Bonus characters

Successfully complete the indicated task to unlock the corresponding character in Mission mode.

CharacterHow to unlock
DonaldReach Day 244 in Story mode.
GoofyReach Day 277 in Story mode.
King MickeySuccessfully complete the game, then purchase the Return Of The King item from the Moogle Shop.
RikuReach Day 171 in Story mode.
SoraSuccessfully complete all missions (100% game completion), then purchase the Soul Of Sora item from the Moogle Shop.
XionReach Day 96 in Story mode.

Challenge missions

Collect Ordeal Badges and Ordeal Blazons.

Defeating Dustflier

One of the requirements to fill the Mission Gauge of the "Kill At Least Six Giant Heartless" mission is to defeat Dustflier. This is the strongest Boss of the game beside Ruler Of Sky, Saix, Riku and Final Xion Form. Make sure to lock-on this Boss in combat and run quickly from it when it started to fly and stomp the ground. This move can kill Roxas with one hit, and cause status ailments or bad status. It has a large amount of HP and is immune to any magic -- be patient. Attack and run as you can, and make sure you can dodge all of the Boss' attacks. Equip the Zero Gear with two Ability Units, two Power Units, and one Guard or Magic Unit. Bring fifteen Megalixirs, five Cures, five Curas and five Curagas. If your level and stats are high enough, you should eventually win the battle.

Defeating Poison Plants

They are very weak to Fire elemental moves. Equip enough Fire magic in your panels slot. You may also bring some Potions.

Defeating Zip Slasher

Equip enough Potions on your panels slot, then start the mission "Collect Hearts in Twilight Town". In this mission you must kill all of the Dire Plants in the mansion area and defeat a strong heartless Zip Slasher in order to fill the mission gauge completely. After you eliminate all of the Dire Plants in the mansion area, get out from the woods. A caution sign will appear, stating that a strong Heartless is near. Defeat a weak Shadow in front of you, then go to the big alley (the entrance is between two houses) where the tram is stopped. Zip Slasher will appear. He has a high health, really defensive, and has a strong attack. He is also immune to Fire magic. Do not attack him first. Get away from him and let Marluxia slash him until he does his only attacking move, Spin and Stab (first he spins with his knuckles blades then stabs with his weapon). This is very fatal to your health if you are damaged by the move. After he does the Spin and Stab, he will start standing like a statue (not moving at all and probably recharging his attacks). Unleash a barrage of Keyblades slashing strikes until he starts guarding his body with his knuckles blades. When he does this, quickly run away from him. Make sure his attacks will not reach you, as he will do the Spin and Stab again. After he does his strike, attack him again with your keyblades and run away quickly from him when he starts to defend himself with his blades. Keep doing this until you win. Note: Do not waste your Potions. If Marluxia's health falls to 50%, he will use Curaga that will also heal you.

Dual-wielding Roxas

Successfully complete the game, then purchase the Zero Gear from the Moogle Shop. Equip it on Roxas in Mission mode then add three Ability Units. You can now dual wield with Roxas.

Free items from the organizations

Be sure to talk to every of the organizations in the Grey Area after you complete a mission. They may give you free items or quests to be done. If you complete the quests they give to you, sometimes they may give you rare items such as Diamonds.

Freebies items

Get the indicated number of crowns from completing missions in Mission or Multi-player mode. Select "Freebies" at the shop to get the corresponding item.

Adamanite X2 (material): 180 crowns.
Aero X3 (magic): 25 crowns.
Aeroga (magic): 130 crowns.
Aerora X3 (magic): 80 crowns.
Blizzara X2 (magic): 40 crowns.
Blizzard X3 (magic): 15 crowns.
Crimson Blood (ring): 160 crowns.
Cura X2 (magic): 35 crowns.
Elixir X10: 70 crowns.
Ether X10: 8 crowns.
Guard Unit (L): 240 crowns.
Hi-Ether X10: 55 crowns.
Hi-Potion X10: 50 crowns.
Lift Gear+ (3) (weapon): 10 crowns.
Limit recharge X5: 75 crowns.
LV Doubler (6): 260 crowns.
LV Quadrupler (3): 220 crowns.
Magic unit (L): 190 crowns.
Master's Circle (ring): 358 crowns.
Mega-Ether X10: 100 crowns.
Mega-potion X10: 90 crowns.
Megalixir X5: 120 crowns.
Mystery Gear (3) (weapon): 60 crowns.
Panacea X10: 30 crowns.
Potion X10: 5 crowns.
Power Unit (L): 170 crowns.
Premium Orb (material): 140 crowns.
Rune Ring (ring): 200 crowns.
Sliding Dash LV+ (L): 150 crowns.
Slot Releaser: 65 crowns.
Slot Releaser: 20 crowns.
Slot releaser: 280 crowns.
Slot Releaser: 45 crowns.
Slot Releaser: 85 crowns.
Slot Releaser: 1 crown.
Ultimate Gear (6) (weapon): 110 crowns.
Valor Gear+ (2) (weapon): 2 crowns.

Limit Pass

Successfully complete all Mission Mode missions with a "Gold Crown" rank to unlock the "Limit Pass" in the Moogle shop for purchase. This item allows you to customize limits in Mission mode.

Synthesis Moogle items

Collect the indicated amount of Sigils from the Holo-Mission challenges to unlock the following item from the Synthesis Moogle.

Casual Gear (2): 15 Sigils.
Cure x 3: 25 Sigils.
Fira x 2: 45 Sigils.
Fire x 3: 20 Sigils.
Glide (5): 150 Sigils.
Glide LV+ (L): 170 Sigils.
Haste: 10 Sigils.
Haste (3): 100 Sigils.
Haste LV+ (L): 200 Sigils.
Haste Lv+ L: 110 Sigils.
Level Up: 230 Sigils.
Level Up: 210 Sigils.
Level Up: 90 Sigils.
Level Up: 140 Sigils.
LV Doubler (6): 180 Sigils.
LV Tripler (4): 220 Sigils.
Omega Gear: 160 Sigils.
Phantom Gear+ (4): 70 Sigils.
Rage Gear (5): 120 Sigils.
Slot Releaser: 30 Sigils.
Slot Releaser: 50 Sigils.
Slot Releaser: 5 Sigils.
Slot Releaser: 240 Sigils.
Slot Releaser: 190 Sigils.
Slot Releaser: 130 Sigils.
Slot Releaser: 80 Sigils.
Thundara x 2: 60 Sigils.
Thunder x 3: 35 Sigils.
Ultima Weapon: 255 Sigils.
Wild Gear+ (3): 40 Sigils.

Theater mode

Successfully complete the game to unlock Theater mode, which allows you to replay the game's cinematics.