A day with Bowser Jr. Wiki
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Morton Koopa Day is the day Morton Koopa Sr sacrificed himself for Bowser. Bowser Jr's parents want to be left alone on this day.

Trivia

  • As shown on the Koopapedia article, it is shown that Morton Koopa Sr might have died in a battle with Mario.
  • As seen in Two Koopas for a Throne, it is shown that Morton Koopa Sr died in a battle with Mario.
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