Upon clearing Chapter 6, its manual can be bought in the Shopping District's Hidden Treasure shop for 600 Nekketsu points (650 in the European version).
Inazuma Eleven 3
Can be bought in Oosaka's Hidden Treasure shop for 1,000 Nekketsu points.
Inazuma Eleven SD
Acquired after clearing all Inazuma in Endou-hen 1-3-1 (one per difficulty).
The user kicks the ball to the side, creating a horizontal trail of light with the ball in it. They then backflip, creating a vertical trail of light. As it moves forward, it makes a plus-shaped cross with the horizontal trail and heads towards the goal.
The user kicks the ball into the air and backflips, creating a vertical trail of light with the ball in it. They then land and instantly spring into the air again, kicking the ball with their heel once they reach it. Upon creating the horizontal trail of light, it makes an X-shaped cross and heads towards the goal.