Extermination Protocol (for MSX)
A downloadable game
Platform: MSX1
Author: RodRivas78
Language: BASIC (MSX-BASIC)
Genre: Action / Arcade
Introduction
Extermination Protocol
Location: Enemy Territory
Status: Infiltrated and Compromised
Vehicle: Recon Mech – Unit 7
The greatest threat to your mech isn't destruction. It's silence.
Hunted by a relentless pursuer, you must cross a field of experimental EMP mines — weapons that don’t kill, but paralyze.
As you flee, your mission is not only to escape — you must disable the mines being scattered across the battlefield by the enemy. Each device left active tightens the trap, turning the terrain into a silent prison.
One misstep from anyone and all systems shut down. Trapped in a dark, immobile shell, you become easy prey.
Run. Disable. Survive — before the lights go out.
Game Instructions
Objective
Your mission is to disable the EMP mines. You can only deactivate them within a few seconds while they are still blue or yellow. They turn yellow and emit a different sound just before arming. Once armed, they become red — at that point, neither you nor your pursuer can touch them, or it’s Game Over.
Stages
You advance to the next stage after disabling every 3 mines.
Levels
Every 3 stages, a new LEVEL begins, and both your speed and your opponent’s speed increase.
Controls
Keyboard: Arrow keys to move / Spacebar to restart the game.
Warning
During gameplay, a mine may be placed on top of another already activated mine. You will not be able to deactivate it, which will trigger the EMP device and paralyze the mechs (GAME OVER). So hurry up!
Sounds
The game features sounds, so make sure your volume is up!
Credits
- Rodrigo G. Rivas (rodrivas78): Game concept and programming
- Flávio Martins Prado (praduca): Cover design, writing, testing, gameplay/mechanics advice, and level design
- Danilo Balarini: Tester (QA Analyst), design advice (mechanics and stages)
- Eugênio D'Alle Olle: Text review and guidance
How to Play
The game runs on all the best MSX emulators. Tested with OPEN MSX, BLUE MSX, and WEB MSX without any issues. It is unplayable on MSX Turbo R.
Online
Open this link:
https://webmsx.org/?DISK=https://github.com/rodrivas78/ext_protocol/raw/main/EXT_PROTOCOL_.dsk
The game will start automatically.
Emulator
You can also load the game by dragging and dropping the .DSK file on BlueMSX.
Press the arrow (play) button to start the emulator.
(c) 2026 by Rodrigo Gonzalez / OrbDream Studio
Download
Click download now to get access to the following files:
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