Things You'll Need
Instructions
Determine the rules of the game. Each Naruto game is different, which requires different rules to learn rasengan. In most games, Naruto will learn the move after beating an opponent or during training. For example, the DS game "Path of the Ninja" requires Naruto to beat "Jyakko" to obtain the skill for rasengan.
Play the game. Beat the characters that give the skill for rasengan. For example, play against Jyakko in the Crystal Ravine. Beat Jyakko and then equip Naruto with the rasengan tag give after the battle.
Learn the buttons for rasengan. These will differ for each game and character. For example, Konohamaru's rasengan requires tapping the DS screen in "Path of the Ninja" and then hitting the numbers 9, 2, 12 and 7 as quickly as possible. Practice hitting the buttons according to the character and game until the rasengan occurs consistently.