Looks like Starlight has entered Mario Strikers Battle League and she's wearing the Knight Gear with the same coloration as Daisy but with Saradomin's logo in the middle of the visor and her diaper is bulging through the shorts because she's got the biggest shorts she can find but it's not good enough to cover the poof.

Battle League Knight Gear and Meowstic © Nintendo.
Starlight and Art © Me.