You can contact the Rom Cartridge creator through Twitter or using a Facebook comment.
To send me a direct message on Twitter, you just have to follow me and ask me to follow you back. This way in less than 24 hours you will be able to send me a direct message. You can follow me on Twitter by clicking the next button and then clicking again on the Follow button that appears:
If you don't need your message to be a direct message, you can also just mention me in a tweet by clicking on this button:
Finally, the way to contact me through Facebook is by leaving a public comment in the next text box: