Doodle Hex is a game of magical dueling where aspiring Doodlers compete head-to-head for fun and glory. Two Doodlers fight by drawing runes onto the DS touch screen, in realtime, to create powerful and fun spells to inflict on their opponent, such as blasts of fire or curses that shake the opponent's screens, turn their own spells back on them and even turn them into a frog.

Speed of thought, tactical choices and accurate drawing of simple shapes are all important to progress through the game and succeed in Doodle Hex.