Wendy was doing her nails.

Wendy is shown to be very desiring of wealth and prestige; her being the one of two Koopalings in Mario & Luigi: Superstar Saga to drop 102 coins instead of 99 may be a reference to her greed. Her siblings typically portray her as a spoiled brat, and she even thinks of herself as Bowser's favorite child. She does whatever she can to impress her father and likes to be congratulated for her bad deeds. Wendy gets stuck in pipes due to her larger than normal arse.