This is a port of Duck and Cover for the Atari 2600.
It is written in bAtari BASIC, and is 4 kilobytes when compiled.
You can download a pre-compiled binary from the releases tab, or you can build it from source.
Use the bAtari BASIC compiler to build the game from source.
Once you have a binary, you can play it on an emulator or a real Atari 2600 system using a flash cartridge.