Instructions
Locate and talk to Salamence in PokePark. He will ask you whether you want to play "Salamence's Air Ace." Select "Yes."
Choose a large Pokemon to play, such as Salamence, Dragonite, Charizard or Flygon. These Pokemon will be able to destroy more targets than smaller Pokemon, such as Pikachu or Zubat.
Hold the Wii remote sideways. Tilt the remote left, right, back and forth to control your Pokemon. Press the "2" button to shoot targets. Blue targets are worth 100 points, red targets are worth 500 and gold targets are worth 1,000.
Start the game by pressing "Start." Shoot as many targets as possible with the "2" button. If you miss, Pokemon can also earn points by flying into the targets. Earn 25,000 points before you cross the finish line and you will receive an event telling you that you've unlocked Latios.