User blog comment:Hakuryuu12345/Help in Inazuma Eleven Go Strikers 2013/@comment-3153924-20121230134545/@comment-5262822-20121230135442

Holding Wii Remote in the horizontal - Press 1 when your guage is full until appears LVL1, LVL 2, LVL 3, etc...

Using Nuchunk (?) - Press B when your guage is full until appears LVL1, LVL 2, LVL 3, etc...