Mechs vs Aliens is a turn-based battle game in which you fight as robots (or 'mechs') against invading monsters from another planet in order to save Earth.
In each fight you choose which attack or defense moves you want to launch, then watch the battle unfold. You must run down your opponent's energy bar before yours gets to zero. There are several different mechs to play as, and stages in various cities across the world.
Mechs vs Aliens brings little innovation, but it's still fun to play.