itch.io

Typically refers to a style of game where a player's ship can rotate 360 degrees on a 2d plane and is responsible for shooting and destroying on coming asteroids. The asteroids start out large, but divide into smaller obstacles as they are damaged. The game becomes more difficult and chaotic as asteroids are broken into the smaller pieces.

Software produced for proprietary consoles by reverse engineers, hobbyists, and more. Often targeting retro & alternative devices.

See:

• NES Roms
• Game Boy Roms
• Commodore 64