• Sound Test

    At the PC Engine CD boot screen, hold Up + I + II and press Run. If done right, the game load directly into the sound test.

    Contributed By: ReyVGM.


  • Unlock All History Lectures

    At the game menu screen, select "Lecture", then move the cursor all the way to the bottom-right of the screen and press I. If done right, all 10 history lessons will be unlocked.

    Contributed By: ReyVGM.

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You can submit a problem report for any non-working or fake code in the lists above.