Use the on-screen buttons to move and jump. Stand in front of a vending machine and press the Z button to buy a new block. Then press Z again to enter the building mode and place the block in the world. If you bought the wrong block, press the X button to get a refund.
Use the arrow keys to move and jump. Press Z next to a vending machine to buy a new block. Each block costs one coin. When you're holding a block, press Z to enter building mode, then use the arrow keys to move your cursor. Press Z again to place the block. Spend your starting coins wisely to grab the bag of silver!