X3 Zero mod 0.0.1

X3 Zero mod 0.0.1

Enable X3 Zero in Mods and select your original Mega Man X3 USA ROM. The game prepares the assets automatically; no manual extraction is needed. The mod is disabled by default and requires the included host executable.

• Play as Zero with his buster/saber combo and X1 special weapons.
• Press Select while standing idle on solid ground to exchange X and Zero using their original teleport effects.
• Separate current HP; pickups/subtanks heal only the active character. Heart tanks share the maximum, and respawn refills both.
• Original Zero pause/title body and Z health badge; original X 1-up icon retained.
• First charge tier now fires the small green shot.

X2/X3 boss weapons and simultaneous co-op are not included. Weapons are a separate follow-up.

This first release retains X1 projectile/audio behavior; some X3 effects and unusual scripted/terrain cases still need further fidelity work. Keep modded saves separate from stock and weapon-development saves.

The Windows ZIP includes the game host and its required runtime DLLs. Supply your own supported X1 ROM and X3 USA ROM; no ROMs or extracted game assets are bundled.

Validation: five focused CTests, complete Zero runtime checks, native extraction parity and invalid-ROM checks, and a fresh packaged cold boot passed. Linux ROM-free setup-host CI passed.