problem with using keyboard in single player Smash Bros.

[freelancer91]

Whenever I try to play super smash brothers brawl on my keyboard, intending to have only one player, it always shows up with 2 controllers connected. Whenever I press up on the main stick, the 2nd player's cursor will move the the right. When I press down, it will move left. Basically the 2nd player's cursor is moving on a rotated axis, while the first player is moving on an upright axis. How do I disable the second player's control on the keyboard?

Thanks