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Holding A+B while starting the game will display a hidden message: "KONAMI ONE GRADIUS ONE"
This appears to be a diagnostic screen, as some people have reported that it may say "TEN" instead of "ONE" on one line or the other. It is theorized that this screen displays the result of some kind of code verification algorithm or checksum, with each line representing the status of a different portion of the game's code.
This appears to be a diagnostic screen, as some people have reported that it may say "TEN" instead of "ONE" on one line or the other. It is theorized that this screen displays the result of some kind of code verification algorithm or checksum, with each line representing the status of a different portion of the game's code.
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