Bonus options
 
 Beat the game on the "Regular" difficulty setting to unlock level
 select and enemy ship preview options.
 
 Alternate mode selection screen
 
 Beat the game on the "Beginner" difficulty setting to change the
 background on the mode selection screen.
 
  Game Shark Codez:
 
     
  Infinite Lives                                       
  800A3648 0003
     
  Infinite Specials                                    
  800A3649 0003
     
  Extra Armor                                          
  800A362F 0001
     
  Max Upper Level                                      
  800A3659 0063
     
  Max Lower Level                                      
  800A3658 0003
     
  Max Combo                                            
  810A3644 7FFF
     
  Score Modifier (Smaller Amount)                      
  810A3626 ????
     
  Score Modifier (Larger Amount)                       
  810A3624 ????
     
  Character Modifier                                   
  800A364C 00??
     
  Status Modifier                                      
  800A364A 00??
     
  Quantity Digits to Accompany Character Modifier Code 
     
  00 - Character 1                                     
  01 - Character 2                                     
  02 - Character 3                                     
     
  Quantity Digits to Accompany Status Modifier Code    
     
  01 - High                                            
  02 - Mid                                             
  03 - Low