As you can see in this video around 10:05 Ashley makes a cameo in the form of a doll. Neat, huh? 
We've had a lot of Rhythm Heaven characters make cameos in Wario Ware but I think this is the first time besides the Space Bunnies that a Wario Ware character appears in Rhythm Heaven.

We've had a lot of Rhythm Heaven characters make cameos in Wario Ware but I think this is the first time besides the Space Bunnies that a Wario Ware character appears in Rhythm Heaven.