Facts. I'm glad you were able to solve this conundrum....But I thought she does though or did.
As she is one of WarioWare's devs, or at least, she used to be (D.I.Y and future games makes this uncertain as D.I.Y had Mona leave Wario for Diamond Software, but it's never known if Diamond Software continues to exist afterward)
I always thought that after the events of WarioWare DIY, the company was more or less dissolved, and only continued as an ad-hoc organisation that Wario sort of re-establishes whenever he can make cash out of a certain event....But I thought she does/did though,
as she is one of WarioWare's devs, or at least, she used to be (D.I.Y and future games makes this uncertain as D.I.Y had Mona leave Wario for Diamond Software, but it's never known if Diamond Software continues to exist afterward as it’s never mentioned afterwards).