The following are known Gecko Codes for Dragon Quest Swords: The Masked Queen and the Tower of Mirrors on Nintendo Wii (Wii).

Always Have 100 Mini-Medals [Jose_Gallardo]
0436B687 00000064

999999 GP [Aesteval]
48000000 80368868
DE000000 80008180
1400007C 000F423F
E0000000 80008000

Infinite Hero HP [Aesteval]
48000000 80368868
DE000000 80008180
14000528 4479C000
E0000000 80008000

Hero Max HP 999 [Aesteval]
48000000 80368868
DE000000 80008180
1400052C 4479C000
E0000000 80008000

Master Stroke Gauge Stays at 100% [Aesteval]
48000000 80368868
DE000000 80008180
14000548 42C80000
E0000000 80008000

Infinite Partner HP [Aesteval]
48000000 8036886C
DE000000 80008180
14000528 4479C000
E0000000 80008000

Partner Max HP 999 [Aesteval]
48000000 8036886C
DE000000 80008180
1400052C 4479C000
E0000000 80008000

Infinite Partner MP [Aesteval]
48000000 8036886C
DE000000 80008180
14000538 4479C000
E0000000 80008000

Partner Max MP 999 [Aesteval]
48000000 8036886C
DE000000 80008180
1400053C 4479C000
E0000000 80008000

999999 Exp Hero [Aesteval]
48000000 80368868
DE000000 80008180
14000044 000F423F
E0000000 80008000

9999999 Exp Hero [Aesteval]
48000000 80368868
DE000000 80008180
14000044 0098967F
E0000000 80008000

999999 Exp Partner [Aesteval]
48000000 8036886C
DE000000 80008180
14000044 000F423F
E0000000 80008000

9999999 Exp Partner [Aesteval]
48000000 8036886C
DE000000 80008180
14000044 0098967F
E0000000 80008000

99 Monster Bones [Aesteval]
0436E250 00000063

99 Iron Ore [Aesteval]
0436E24C 00000063

99 Lava Lump [Aesteval]
0436E254 00000063

99 Ice Crystal [Aesteval]
0436E258 00000063

99 Thunderball [Aesteval]
0436E25C 00000063

99 Gold Bar [Aesteval]
0436E260 00000063

99 Orichalcum [Aesteval]
0436E264 00000063

99 Noble Metal [Aesteval]
0436E268 00000063

Button Activated Code Enabler [Aesteval]
283392EA YYYYXXXX
ZZZZZZZZ ZZZZZZZZ
E0000000 80008000

Button Code Note
See the forums (http://www.usbgecko.com/forums/showthread.php?t=53) for how to define desired button usage in spots YYYYXXXX
Input desired code in place of ZZZZZZZZ ZZZZZZZZ

Item Bag Modifiers

Slot 1 [Aesteval]
0436B028 00000XXX
0436B02C YY000000

Slot 2 [Aesteval]
0436B030 00000XXX
0436B034 YY000000

Slot 3 [Aesteval]
0436B038 00000XXX
0436B03C YY000000

Slot 4 [Aesteval]
0436B040 00000XXX
0436B044 YY000000

Slot 5 [Aesteval]
0436B048 00000XXX
0436B04C YY000000

Slot 6 [Aesteval]
0436B050 00000XXX
0436B054 YY000000

Slot 7 [Aesteval]
0436B058 00000XXX
0436B05C YY000000

Slot 8 [Aesteval]
0436B060 00000XXX
0436B064 YY000000

Item Mod Note
More slots can be accessed by following the shown pattern
Replace YY with desired quantity in hex
Replace XXX with values from the following list:

Item Bag Digits

3E9 Medicinal Herb
3EA Antidotal Herb
3EB Strong Medicine
3EC Special Medicine
3ED Yggdrasil Leaf
3EE Magic Water
3EF Yggdrasil Dew
3F0 Loyalty Card
3F1 Replenishield Powder
3F2 Tombola Ticket
3F3 Boulderdasher

Equipment Bag Modifiers

Slot 1 [Aesteval]
0436B28C 00000XXX
0436B290 000000YY

Slot 2 [Aesteval]
0436B294 00000XXX
0436B298 000000YY

Slot 3 [Aesteval]
0436B29C 00000XXX
0436B2A0 000000YY

Slot 4 [Aesteval]
0436B2A4 00000XXX
0436B2A8 000000YY

Slot 5 [Aesteval]
0436B2AC 00000XXX
0436B2B0 000000YY

Slot 6 [Aesteval]
0436B2B4 00000XXX
0436B2B8 000000YY

Slot 7 [Aesteval]
0436B2BC 00000XXX
0436B2C0 000000YY

Slot 8 [Aesteval]
0436B2C4 00000XXX
0436B2C8 000000YY

Slot 9 [Aesteval]
0436B2CC 00000XXX
0436B2D0 000000YY

Slot 10 [Aesteval]
0436B2D4 00000XXX
0436B2D8 000000YY

Slot 11 [Aesteval]
0436B2DC 00000XXX
0436B2E0 000000YY

Slot 12 [Aesteval]
0436B2E4 00000XXX
0436B2E8 000000YY

Slot 13 [Aesteval]
0436B2EC 00000XXX
0436B2F0 000000YY

Slot 14 [Aesteval]
0436B2F4 00000XXX
0436B2F8 000000YY

Equipment Mod Note
More slots can be accessed by following the shown pattern
Replace YY with desired quantity in hex
Replace XXX with values from the following lists:

Weapon Digits

001 Steel Broadsword
002 Fire Blade
003 Blazing Blade
004 Wrath of Helios
005 Frost Blade
006 Wrath of Boreas
007 Lightning Blade
008 Thunderbolt Blade
009 Wrath of Zeus
00A Rednusadner
00B Aurora Blade
00C Sword of Kings
00D Dragovian King Sword
00E Blizzard Blade
00F Rusty Old Sword
010 Metal King Sword
011 Orichalcum Stick
012 Dragon Warrior's Sword
013 Copper Sword
014 Kitten Claw
015 Puppy Paw
016 Astraea's Abacus
017 Zenithian Sword
018 Poison Needle
019 Deathbringer
01A Deathbringer's Shade

Shield Digits

0C9 Leather Shield
0CA Iron Shield
0CB Platinum Shield
0CC Ogre Shield
0CD Orichalcum Teaspoon
0CE Hero's Shield
0CF Liquid Metal Shield
0D0 Kitty Shield
0D1 Doggy Shield
0D2 Pot Lid
0D3 Dartboard

Armor Digits

191 Wayfarer's Clothes
192 Leather Armor
193 Iron Armor
194 Full Plate Armor
195 Magic Armour
196 Platinum Mail
197 Dragon Mail
198 Auroral Armor
199 Liquid Metal Armor
19A Purr Coat
19B Dog's Body Armor
19C Boxer Shorts

Headgear Digits

259 Leather Hat
25A Hardwood Headwear
25B Iron Helmet
25C Iron Mask
25D Platinum Headgear
25E Great Helm
25F Happy Hat
260 Metal King Helm
261 Eggshelm

Accessory Digits

321 Band of Bravery
322 Strength Ring
323 Strength Ring +1
324 Strength Ring +2
325 Strength Ring +3
326 Strength Ring +4
327 Uber Strength Ring
328 ACCE08 - Dummy Item (Strength Ring)
329 Ring of Immunity
32A Ruby of Protection
32B Ruby of Protection +1
32C Uber Ruby of Protection
32D ACCE13 - Dummy Item (Ruby of Protection)
32E Life Ring
32F Life Ring +1
330 Life Ring +2
331 Life Ring +3
332 Life Ring +4
333 Uber Life Ring
334 ACCE20 - Dummy Item (Life Ring)
335 Gold Bracer
336 Ring of Protection
337 Ring of Protection +1
338 Uber Ring of Protection
339 ACCE25 - Dummy Item (Ring of Protection)
33A Life Bracer
33B Life Bracer +1
33C Life Bracer +2
33D Life Bracer +3
33E Life Bracer +4
33F Uber Life Bracer
340 ACCE32 - Dummy Item (Life Bracer)
341 Mighty Armlet
342 Mighty Armlet +1
343 Mighty Armlet +2
344 Mighty Armlet +3
345 Mighty Armlet +4
346 Uber Mighty Armlet
347 ACCE39 - Dummy Item (Mighty Armlet)
348 Elevating Shoes
349 Elevating Shoes +1
34A Elevating Shoes +2
34B Elevating Shoes +3
34C Elevating Shoes +4
34D Uber Elevating Shoes
34E ACCE46 - Dummy Item (Elevating Shoes)
34F Tough Guy Tatoo
350 Tough Guy Tatoo +1
351 Tough Guy Tatoo +2
352 Tough Guy Tatoo +3
353 Tough Guy Tatoo +4
354 Uber Tough Guy Tatoo
355 ACCE53 - Dummy Item (Tough Guy Tatoo)
356 Military Tatoo
357 Bunny Tail