Once you unlock the ability to access W.I.Z. during Episode 1, you can enter passwords to unlock outfits, weapons and materials.

Effect	Password
Using this code unlocks "オロナミンC" for purchase at the Café.	Code: 390184
Using this code unlocks "餃子の王将の餃子" for purchase at the Café.	Code: 014193
Using this code unlocks Bullion (Extra Large).	Code: 571006
Using this code unlocks Bullion (Large).	Code: 822419
Using this code unlocks Bullion (Medium).	Code: 240325
Using this code unlocks the "戦闘服" outfit for use with Bren.	Code: 810111
Using this code unlocks the "特殊部隊制服" for use with Bren.	Code: 453927
Using this code unlocks the Hagi Toko! T-Shirt and Shorts for use with Bren.	Code: 258104
Using this code unlocks the JOYSOUND Jacket for use with Bren.	Code: 932571
Using this code unlocks the Keroro Fire Jacket for use with Bren.	Code: 486290
Using this code unlocks the Military Wing outfit for use with Bren.	Code: 941342
Using this code unlocks the Platinum Armour for use with Bren.	Code: 070682
Using this code unlocks the Plazma Bomber weapon blueprint.	Code: 565656
Using this code unlocks the Rathalos Armour from Monster Hunter for use with Bren.	Code: 729443
Using this code unlocks the Riders blitz outfit for use with Bren.	Code: 697834
Using this code unlocks the Skull Biker outfit for use with Bren.	Code: 632798
Using this code unlocks the Sport Stars outfit for use with Bren.	Code: 163489
Using this code unlocks Zoff Glasses for use with Bren, Teekee, Luan, Julie, and Chris.	Code: 002040