Players bash enemy mecha/robots and proceed through different beautiful 2-D hand-drawn environments. The character and mecha designs are typical high Capcom design. As you defeat enemies pieces of their mech will break off. You can use these pieces to upgrade your own mech with new attacks, treads, drills, flamethrowers, etc. Items are also left to replenish health and gain points. Pushing multiple buttons together yields a powerful attack that drains your life bar slightly.