Pengwen

Pengwen is Penguin's girlfriend mentioned in Mario Party Advance. In Shroom City's Ice Game Room, Penguin wants to propose to Pengwen, but could not afford a ring. He loses everything he had on Drop 'em, a game he is trying to win. With the help of either Mario, Luigi, Peach, or Yoshi, Penguin manages to get back his earnings and announces that he and Pengwen are finally able to get married, while whoever won the game gets to keep it. However, at the end of the game, the epilogue states that Penguin is still unable to afford a ring.

Trivia

 * Pengwen's name is a portmanteau of "Penguin" and "Gwen", the latter being a nickname commonly used in place of the longer "Gwendolyn". It should also be noted that both names are homophones of each other.