Hover Strike Cart and CD

    * Cheats (at Mission Select Screen, unless otherwise noted):
       * Unlimited Weapons/Energy/Shields  : D+3+4+6+7 (tone confirms)
       * Extra Lives (limit = 9)           : 3+6+9+#      "      "
       * Level Skip                        : 2+4+6+7+8+9  "      "
       * Toggle Day/Night (during game play): U+A+B+C+7
    * Eggs (at Mission Select Screen, unless otherwise noted):
       * Change Globe Speed/Direction               : 4+6
       * Change Globe Size (CD only)                : U/D
       * Alternate External Monitor Frame           : R+C+1+4+5
       * Alternate Ground Texture (during game play) : U+A+B+C+3
       * Debug Mode (during game play)               : U+A+B+C+6
       * Change Music Tracks (during game play)      : U+A+B+C+0 (Cart.only)
       * Alternate Audio Cue (at Mission Select)     :+4+8 (Cart.only)  
    * Enable Secret Bonus Missions (at Mission Select Screen):
         Level 1 = U+2+3+6     Level 3 = R+3+5+6
         Level 2 = D+2+6+7+8   Level 4 = U+2+5+8     Level 5 = R+2+4+5+6