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Alpha Roid

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MSX 1 Shooter 5 (0) 3

Alpha Roid

Alpha Roid on MSX1

Compiled by the Retro Games Online Editorial Team · Updated June 27, 2026

Alpha Roid on MSX 1 is a classic fixed-screen shooter from the early 1980s, when space shooters were king. It was released in Japan during that boom, though exact developer and publisher details are not widely documented. The game fits squarely in the MSX 1 library, a system known for porting and creating simple arcade-style games for the home market.

The player controls a small ship at the bottom of the screen, moving left and right to dodge and fire at waves of descending alien blocks. Each wave gets faster and denser, and the objective is to survive as long as possible while racking up a high score. Power-ups or extra lives may appear, but precise mechanics for this title are not confirmed.

Alpha Roid is a straightforward, no-frills entry that delivers the pure arcade loop of its era. It's worth a look if you enjoy early MSX shooters like Space Invaders clones or Galaxian-inspired games. It's not groundbreaking, but it captures the feel of the early home computer gaming scene and makes for a quick, nostalgic play session.

How to Play Alpha Roid Online

Getting Started

Launch the game; you will see the title screen. Press Enter to start. The game immediately begins with your ship at the bottom of the screen and enemy blocks descending from the top. Use the Arrow Keys (left/right) to move your ship and press the fire button (X) to shoot. There is no tutorial - you learn by playing.

The core loop is simple: shoot all enemies in a wave, then a new, slightly faster wave appears. Avoid enemy fire and collisions. Your score increases with each hit. There is no continue or save - each game is a single attempt. The difficulty ramps quickly, so focus on positioning and rapid fire.

If the menus are in Japanese, they are minimal: typically you see a start option and possibly a difficulty select. The default option is usually fine. Just press Enter to begin. The controls are responsive, and the game runs at a steady pace. Good luck surviving the asteroids.