Hammer Time

From BoardGameGeek:

It's hammer time! Players are working to collect shiny gemstones in the mine. They'll knock the gemstones off the box using the hammer. To complete their tasks, they need to collect the right number and color of gemstones. But be careful – anyone who knocks too hard will wake Dragomir the Dragon and lose their loot! The first player to completely fill all four of their wagons wins the game. -description from the publisher