NeoGamma runs it fine but its interface/gui is not exactly user friendly especially for target age of kids playing this game ... Configurable USB Loader has a fix applied as of v50a (alpha) -> Fix for Peppa Pig (from NeoGamma by WiiPower) -> http://gbatemp.net/index.php?showtopic=147...t&p=2454991
I am running it on cfg50 with no problems now
By the way my girlfriends 3 year old daughter loves this game! It is nice to see a title that is fun and accessible for her age group ... the parrot mini game has her and her 6 year old sister in hysterical laughter every time!