Play Metal Mech: Man & Machine (Japan edition · Japanese) Online

In the opening city, move the walker with Left and Right and practice holding B while directing its gun. Shoot suspicious scenery and containers. When an item appears or a passage is too small, press SELECT+A to dismount and collect it on foot. Look for the level key before heading for the exit; simply walking to the end is not enough. Return close to the walker and press SELECT to board, as described in the Japanese manual. START opens the sub-screen for checking equipment and energy. Remember unexplored ladders and side passages rather than treating every street as a straight shooting corridor.

Walker: D-pad moves and aims the turret; A jumps; B fires; SELECT cycles weapons; SELECT+A ejects the pilot; SELECT+B uses a smart bomb. When you begin firing after choosing Left or Right, holding B keeps that travel direction while the D-pad changes aim. On foot: Left/Right move, A jumps, B shoots, and SELECT boards the nearby walker. START switches to/from the sub-screen; use the D-pad and A to select its commands. Boarding follows the Japanese manual, not the differently worded US control table.