The First 15 Minutes of Nano Assault Neo (Wii U)

Copied from GameFaqs:

The entire nano cosmos is under threat from the deadly Nanostray virus and only one person can stop it... you! Shrink down to microscopic size and prepare to blast your way through millions of deadly enemies in Nano Assault Neo.

Take control of a miniscule ship armed to the teeth with advanced weaponry, then traverse individual cells to wipe out any trace of the virus.

The faster you wipe out the enemy cells, the more points you'll score and the quicker you'll be able to move onto the next stage. Watch out for heart-pounding races through bonus-filled tunnels along the way, as well as gigantic boss battles that'll take every ounce of skill to survive.

Play through a variety of game modes and pit your scores against the world with online leaderboards.