CheatCodes.com has all the official Dragon Quest Monsters: Joker DS cheats to unlock everything. If you know of any that we don't have, please let us know.
All published and official codes as of Sunday May 19, 2013 for Dragon Quest Monsters: Joker are shown below.
The easiest way to get the scout's pledge quickly and get to those other islands is to get a slime with your first monster and then get into the cave and get a bat (not required but I would recommend) and then level those 2 up and then go through the cave (Maybe if you got the bat you can go on-you would need an amount of power) and you go up the rope and you are done!
To synthesize your monsters need to be at least a level 10, AND the M.S.C. Needs to have started.
Have a Mischievous Mole with a good weapon that knows Heart Breaker so that you can shock his so he'll lose his turn, the rest is up to you.
To Get the metal menagerie you first need to be in the finals of the M.S.C. (Monster Scout Challenge) Then you go to Palish Isle Go into Madame Rummy's lounge and talk to the man guarding the door.
To get a liquid metal slime you need to have at least 100 monsters in your library and have beaten Dr Snapped (Dr. Snapp).
Complete monster and skill libraries and speak to the skill library NPC.
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