There's just one title on the North American Wii U eShop this week: Mr. Driller 2. This game was originally released on the Game Boy Advance a while back and was developed by Bandai Namco. It is priced at $6.99 in the US. Just like every other GBA game on the Virtual Console, it only supports one player.
Here's a brief description from the game's detail page on Nintendo's official website:
Join Susumu and Anna as a mysterious outbreak of Blocks threaten the world's existence. Armed with a mighty drill, dig deep through multi-colored blocks until reaching safety. Not all of the blocks will be breakable, but be careful that the blocks you break don't end falling on you, or cut off your air supply! Scramble to grab air capsules for a recharge, and you'll be just fine to reach your goal. How deep can you dig underground? Drill to your heart's content in these three modes: Mission Driller, Endless Driller and Time Attack Driller!