This is interesting on so many levels:

“Call it payback. Mario’s been kidnapped, and it’s up to Princess Peach to return the favor and save him. Super Princess Peach for the DS is a classic side scroller, but also features novel touch pad use. Peach has four emotions: “yorokobi” (happiness), “okoru” (anger), “kanashimu” (sadness) and “tanoshimu” (fun). By using the power gauge, these emotions can be accessed through the touch screen, causing Peach to literally cry a river or get pissed off and burn stuff. She’s bound to get ticked the umpteenth time she rescues the plumber only to find that it’s his doppelganger, and the real Mario is in another castle.”

Thanks Kotaku