Food Challenge Cook-Off - Great bonding activity for adults. Create a 2-course meal Mall Scavenger Hunt - Fun game to play with a medium to large group. A sneaky game that you can play over the course of an entire party. to play with a group including young children and adults: Everyone can. Fun selection of adult birthday party games that focus on the birthday guy or girl. It's their day to be Check out the most popular Wii games to play at your party.