According to Games Radar:
"It's bigger and better than Wii Play. It's more fun with friends than Mario Strikers Charged. Yes, some of the events are a pain; others drag on way too long. We can see someone on one side of the country detesting M&S like baked bean sandwiches, while someone else on the other side happily plays it until the real-life Olympics roll around. But if Pictionary and cheesy rolls aren't doing it for your party, there's a good chance Mario & Sonic will."