I bought this to play with the family on Thanksgiving day. Dodgeball was my least favorite game. Yes, the games are simplistic, but it's pretty good multiplayer enjoyment for younger kids. My son is 8 and my nephews are 7 and 6 and they all enjoyed it.
"Kicks", a mini soccer/volleyball game, was probably my favorite. "Wall ball" is basically tennis, or handball was also pretty good. "Paper racers" and the obligatory shooting mini-game "Darts" are very cool as well.
Tetherball and dodgeball I could do without, maybe because I sucked at them and was consistently beaten by children under 10. Shooting hoops was nearly impossible for me to complete by the time I got to the "make 15 shots in 30 seconds" stage. Bug catching is also one of those frustrating, pointless minigame excercises that makes an adult say "Why the

am I playing this again?"
Your avatar child is free roaming the schoolyard playing pickup games on "dares" from the other schoolkids. Play games and collect stickers to unlock other games, harder opponents, and new dares. It's reminds me of carnival games. The games are short, simple, mildly amusing, You'll play for an hour and put it away until the next time the family comes over.
Serious gamers please ignore this one and save your Wii hating smarminess for a thread that gives a crap. These are obviously casual games for the young, the old, and the short attention spanned. Hard to say it's worth $40, but for $30 it's a good value. If you can get it for $20 or in a b2 get 1 it's a must buy if you have kids.