At the title screen, press A once, then Up, Down, Left, Right, Right, Left,
Down, Up, and then Start for level 2. For level 3, press A twice instead of
once, for level 4, press A three times and for level 5, press A four times.
Use the Level Select trick to get a continue, then select Option, then press
and hold A, B, and C simultaneously, then press Start. If the player prompt
shows a panda's face you were successful.
To stay out of reach of enemy fire, first select a difficulty Hard on the
Options screen. When the game begins, stay in the Upper Left or Upper
Right corner and keep firing. This will only work in the first three levels.
