CheatCodes.com has all the official Duel Masters: Sempai Legends GBA 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 Monday May 20, 2013 for Duel Masters: Sempai Legends are shown below.
Favor only two civilizations and have about twice as many monsters as spells. Keep a mix of strong and weak monsters so that you're not too top heavy. This will allow you to make better use of drawn cards.
The best deck is the water(blue)deck because of all the blockers.they are useful later in the game.also the machine(fire)deck because of good monsters that all cost 1 mana. If you want good mana chose the nature(green)deck. It has lots of cards that go to mana zone instead of being detroyed.
In a trade shop, save and quit. Select "Continue" and in "Special" you should have different cards.
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