David's Nintendo Code Book

SKY KID (nes)

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 =>Continue: Hold CNTRL II: D+L after losing your last plane and wait. When
   the title screen appears, press CNTRL I: [START].
 =>Stage Select: On the Player Select screen, use CNTRL I to choose the number
   of players. Hold CNTRL II: D+B, then press CNTRL I: [START].