Yu-Gi-Oh! Shin Duel Monsters 2

Blue-Eyes White Dragon: 
Reincarnate magic cards such as Mega Drain (DC: 75, Darknite with Chakra) or Creature Swap, and there will be a possibility of getting a Blue- Eyes White Dragon. Since Blue-Eyes White Dragon has a DC of about 55, try reincarnating high magic cards.

Dark Magician: Hidden Ability: 
If you can raise the Dark Magician ranking to Major (star with the stripe), you will be able to perform the same extra slot try just as the Robot Knight.

Exodia:
The Forbidden One-33396948
Left Arm-07902349
Right Arm-70903634
Left Leg-44519506
Right Leg-08124921

Robotic Knight: Extra Graveyard Slot Chance: 
Robotic Knight has a hidden ability that lets you have an extra shot at matching three cards in Graveyard Slots. It lets you now try to match three cards on the top row. You get this after you raise your rank to the first star with the yellow stripe.

Yu-Gi-Oh! Duelists of the Roses

Card Passwords:
To enter a password for a card, press R3 at the "Build Deck" screen, and enter an eight digit password.Sometimes you have to wiggle the joystick around to get it to work.

Ancient Tree of Enlightenment EKJHQ109
Aqua Dragon JXCB6FU7
Beast King of the Swamp QXNTQPAX
Birdface N54T4TY5
Black Hole UMJ10MQB
Blast Sphere CZN5GD2X
Change of Heart SBYDQM8B
Crush Card SRA7L5YR
Dragonseeker 81EZCH8B
Earthshaker Y34PN1SV
Elf's Light E5G3NRAD
Fairy King Trusdale YF07QVEZ
Fairy's Gift NVE7A3EZ
Gravity Bind 0HNFG9WX
Greenkappa YBJMCD6Z
Harpy's Feather Duster 8HJHQPNP
Horn of the Unicorn S14FGKQ1
Magician of Faith GME1S3UM
Doppleganger(Mimicat) 69YDQM85
Mystical Capture Chains N1NDJMQ3
Barrel Dragon GTJXSBJ7
Robotic Knight S5S7NKNH
Royal Decree 8TETQHE1
Left Arm of the Forbidden One A5CF6HSH
Seiyaryu 2H4D85J7
Serpentine Princess UMQ3WZUZ
Swordsman From a Foreign Land CZ81UVGR
Swordstalker AH0PSHEB
Tatical Warrior 054TC727

Here are some Cards:

Legendary Fisherman:03643300
Launcher Spider:87322377
Wing Weaver:31447217
Sword Hunter:51345461
7 Completed:86198326
Enchanted Javelin:96355986
Reverse Trap:77622396
Musician King:56907389
Germ Infection:24668830
Chain Energy:79323590
Griggle:95744531
The Reliable Guardian:16430187
Mad Sword Beast:79870141
Illusionist Facless Mage:28546905
Solemn Wishes: 35346968
Reaper of the Cards:33066139
Summoned Skull:70781052
Fake Trap:03027001
Tribute to the Doomed:79759861
Roaring Ocean Snake:19066538
Darkfire Solder#2:78861134
Paralize potion:50152549
Lava Battleguard:20394040
Burning Land:24294108
Castle of Dark Illusions:00062121
Light of Intervention:62867251
Thosand Eyes Ristrict=63519819
Thosand Eyes Idol=27125110
Relinquished=64631466
Relinquished Ritual=41426869

If you fuse Relinquished and Thousand Eyes Idol Together you can make thousand eyes ristrict.

EKJHQ109 - CARD # 655
QXNTQPAX - CARD # 567
CZN5GD2X - CARD # 506
GTJXSBJ7 - CARD # 502
N1NDJMQ3 - CARD # 372
81EZCH8B - CARD # 348
054TC727 - CARD # 152
YBJMCD6Z - CARD # 149
N54T4TY5 - CARD # 291
UMQ3WZUZ - CARD # 458
CZ81UVGR - CARD # 191
AH0PSHEB - CARD # 146
S5S7NKNH - CARD # 510
JXCB6FU7 - CARD # 478
GME1S3UM - CARD # 043
69YDQM85 - CARD # 687
A5CF6HSH - CARD # 057
UMJ10MQB - CARD # 699
8HJHQPNP - CARD # 702
E5G3NRAD - CARD # 758
S14FGKQ1 - CARD # 765

Fusions:
NOTE: The Fusions presented here are only with the starter deck Tactical Warrior.

1. Grappler + Rock Ogre Grotto #1=Megazowler

2. Two Mouth Dark Ruler + Zanki=Sword Arm of Dragon

3. Axe Raider/Empress Judge+ Judgement Hand= Judge Man

4.B. Land Fire Dragon+Cyber Soldier of D. World= Metal Dragon

5.Two Headed King Rex+Cyber Soldier/Jinzo#7=Cybersaurus

6.Masked Clown+Zombie Warrior=Armored Zombie

7.Winged Dragon,G.of F.#1+Master& Expert= Garvas

8.Charubin the Fire Knight+Moon Envoy= Flame Swordsman

Get " Blackland Fire Dragon" and punished eagle:
message: In a deul[duh] combine Baby dragon with LaMoon[attack= 2000 defense= 1900].to get punished eagle mix niwatori and blue winged crown.

Yu-Gi-Oh! Capsule Monster Coliseum

Defeating Tristan: 
To beat Tristan, get or buy fire, wood and thunder. 

Fusions: 
Blue Eyes Ultimate Dragon = 3x Blue Eyes White Dragons (level 2)
Cyber Saurus = Blast Juggler (level 5) + Two-Headed King Rex (level 4)
Darkfire Dragon = Firegrass + Petit Dragon (level 5)
Flame Swordsman = Flame Manipulator + Masaki the Legendary Swordsman 
(level 4)
Flying Penguin = Penguin Soldier + Penguin Knight level 2
Gate Guardian = Sanga + Suijin + Kazejin (level 3)
Harpie Lady Sisters = 3x Harpie Ladies (level 3)
Kaminari Attack = Ocubeam + Mega Thundeball (level 5)
Kwagar Hercules = Hercules Beetle + Kuwagata Alpha (level 3)
Metal Dragon = Lesser Dragon (level 3) + Steel Ogre Grotto #1 (level 3)
Metal Zoa = Zoa (level 2) + Steel Scorpion (level 3)
Millennium Golem = Destroyer Golem + The Statue of Easter Island (level 5)
Rabid Horseman = Battle Ox + Mystic Horseman (level 3)
Summoned Lord Exodia = R. and L. Arms + R and L legs + Exodia The Forbidden 
One (all level 2)
Thousand Dragon = Time Wizard (level 3) + Baby Dragon (level 5) 
Twin-Headed Thunder Dragon = 2x Thunder Dragons (level 4) 

Evolutions: 
Electric Snake: Get Electric Lizard to level 6.
Fireyarou: Get Flame Manipulator to level 3.
Great Moth: Place a level 3 Larvae Moth in a Square that has 30 Wood.
High Tide Gyojin: Place a level 6 Root Water in a Square that has 50 Water.
Hunter Spider: Get Kumootoku to level 4.
Hysoube: Place a level 6 Psychic Kappa in a Square that has 50 Water.
Larvae Moth: Place a level 3 Petit Moth in a Square that has 30 Wood.
Magician of Black Caos: Place a level 4 Dark Magician in a Square with 40 Dark.
Magicians Valkyrie: Place a level 4 LaMoon in a square with 50 light.
Manga Ryu-Ran: Get Ryu-Ran to level 2.
Mon-Larvas: Get Larvas up to level 4.
Penguin Knight: Place a level 3 Penguin Soldier in a Square that has 40 Water.
Perfectly Ultimate Great Moth: Place a level 3 Great Moth in a Square that has 
40 Wood.
Red-Eyes Black Metal Dragon: Place a level 4 Red-Eyes Black Dragon in a square 
with 60 Dark.
Ryu-Kishin Powered: Get Ryu-Kishin up to level 5.
Shining FriendShip: Get Petit Angel up to level 5.
Stone Ghost: Place a level 5 Haniwa in a Square that has 40 Earth. 
Trent: Get Anchient Tree of Enlightenment to level 3.