Before the game begins, simultaneously press A and Start to bring up
a Configuration screen. This screen lets you set the controls, number
of ships, difficulty level, and preview sounds.
Pause the game and press Up, Right, A, Down, Right, A, C, Left, Up, B.
Now press Up to add all weapons, Right to add or remove the claw.
Select a weapon with C and push Down to remove it.
Near the beginning of Level 9 (shortly after the first power up) a white,
blobish enemy will be crawling on the bottom of the screen. It will jump up
at you. If it grabs on to your ship it won't kill you, but it will weigh you Down
for a while and go away and give you about 10,000 points.