Both are simple games that appeal to all ages, letting you pelt friends with pies or feed well-dressed animals. The Christmas versions have replaced those items with snowballs and candy canes.
The Zooshi Christmas game comes as an update to the existing app, so you need to download that first to play, while Pie Noon is a level within Google’s Santa Tracker app. The apps are coded in C++ so they work cross-platform as well.
➤ Raising Sweet C++ Cane for Well-Dressed Animals [Google developers blog]