Play Duel Masters - Shadow Of The Code (e)(rising Sun) Online

Duel Masters: Shadow of the Code came out in 2005 for the Game Boy Advance, a time when portable card games were finding a solid audience. It was published by Majesco Entertainment, and it brought the Duel Masters card game to a handheld format, letting you carry a whole deck in your pocket.

You control a duelist navigating through different locations, challenging opponents to card battles. Your main goal is to build a powerful deck and defeat a series of rivals to become the champion. The core mechanics involve summoning creatures and casting spells by managing your mana; you place cards in your mana zone to generate resources each turn, then deploy creatures to attack your opponent's shields. You break all five of their shields to win. The game's pacing is methodical, requiring you to think a few moves ahead, and the difficulty can spike with opponents who have well-constructed decks. It feels like a genuine test of your ability to plan and adapt with the cards you've collected.