Side-scrolling action shooter Mars Harpoon has been confirmed for release on Wii U.
Developer Seductive Dungeon is developing a new shooter that bares some similarities to Nintendo's own classic Metroid series. As a 2D side-scroller, explorers venture across deep caverns and temples, blasting through hordes of enemies as a 24-year old biologist, Kristen.

More details can be found on the development blog.
What are your thoughts on the Mars Harpoon concept?