Terrible Game! Good idea!
It made my arm tired, and it wasn't really a challenge. If someone want to do something where you move your hand real fast up and down, they'll probably just go and beat off. If you added more elements to the game. Such as a level were you have to cook stuff and not let food burn, that might be fun. Maybe a point system or a time limit too! Also you could do a two player round where chefs go head to head. Pretty good premise for a game, horrible execution! Better Luck next time!