Simple NES emulator in JavaScript.
Place your ROM file and add the file path to index.html.
<option value="./rom/mario1.nes">mario1</option>
Start a local web server.
$ ruby webrick.rb 9999
Then, you can play the game via http://localhost:9999.
| NES | Keyboard |
|---|---|
| Up | W |
| Down | S |
| Left | A |
| Right | D |
| A Button | L |
| B Button | K |
| Start | Enter |
| Select | Space |
Confirmed these games worked well.
https://www.nesdev.org/wiki/Nesdev_Wiki
https://www.nesdev.org/wiki/NES_reference_guide
MIT License. Please see LICENSE file.