Mark III reconstruction

IRON DUKE

Native Sega Master System port of the 1988 Z80 command-war disk. Canyon, roster, two-button pad — plus the Japanese FM Sound Unit.

Assembly lab

SegaMaster System

FM UNIT · TITLE · TOUCH

Chip

YM2413 FM UNIT

The title, briefing and battle cues are the original Tecno Soft MML from the disk, played on the Japanese Mark III YM2413. Export consoles fall back to three square waves.

Sortie

D-Pad / WASD — fly the commander. Digital 4-way clover pad.
Strip / 1-8 — buy at your HQ pad. Soldier is 50. Rapid taps queue.
1 / Z — cannon. Confirm menus.
2 / X — lift a unit, fly, drop to deploy.
Pause / Enter — pause. Select toggles FM.
Title — wait 20 seconds for attract mode (CPU vs CPU demo). Trigger skips it.
CPU vs CPU — camera follows P1. D-Pad up snaps to P2, down returns to P1.

Objective

Income ticks slowly. Each captured relay post raises your purse. On Lupars and Remerje the CPU draws 75% faster. Build a column. Soldiers seize posts. A Grand-Slam that reaches the far HQ ends the war.