Six factions are engaged in global warfare in Battalion Wars 2, an action strategy title supporting both gesture-based controls and the system's Wi-Fi Connection for online competition. This follow-up to 2005's GameCube title once again features cartoon-like combat in a choice of colorful maps. Players will fight on land, through air, and even across water in 20 missions spanning five theatres of war. Units such as tanks, grunts, submarines, and bombers can be switched to at any time for direct control on the battlefield.

The Wii Remote is used like a pointer device to highlight friendly units or to target enemies, with the Nunchuck controlling both movement and weapons. Players can immediately open fire on any selected enemy unit or order the computer AI to do the dirty work. A full-screen map is a mere button click away, allowing players to scout unit positions and strategic buildings or landmarks, while a circular mini-map displays nearby units. Simultaneous action with a friend or a random online opponent is available in one of three mission types: Co-op, Assault, and Skirmish.