Japanese developers Grezzo Games have been showing off a Wii-exclusive title called Line Attack Heroes.
Nothing to do with line dancing, it's a fast-paced game with melee combat. It also seems to feature a healthy amount of pirates. As the player you command a team of warriors, launching attacks using the Wiimote.
Your quest (should you choose to accept it) is to find the missing pieces of a dragon statue. Along the way you'll encounter a variety of enemies, each time you defeat one you gain any special abilities they may have. Like Kirby when he eats something. Boss fights also take place. Formation plays an important part in battle, how you line up your warriors can decide whether you succeed or fail.
Click through to the Line Attack Heroes page for screenshots.