==CODES==

-100 Ships-
Go to the Options menu and set up the options as follows: 
Difficulty - Hard 
Ships - 2 
Continues - 1 
Then select Sound 65 in Sound Test and press A. There won't be a sound, but when you start playing, 
you'll start with 99 ships.

-Skip first level-
Hold down B and press the Start button on the title screen. 
You should start on the second level now.

-Stage Select-
Highlight ''Sound Test'' in the Options menu. Then press A to listen to the sounds in this order: . A stage select option should appear at the bottom of the screen.

-Start with 99 Bombs-
Press  on controller two at the ship select screen.

-Weapon Power-Up-
Go to the Options menu and set up the options as follows: 
Difficulty - Hard 
Ships - 3 
Continues - 2 
Then select Sound 77 from Sound Test and press A. No sound will be heard, but when you start 
playing you can gain Level 20 firepower by pressing B on controller two.