This is a Chip-8 emulator I made that took some time to make. You can import a Chip-8 rom by going to http://tomeko.net/online_tools/file_to_hex.php?lang=en and then uncheckmark all the options, then import the chip-8 rom file you want to use, then copy the hex output, and finally press space in this project or click the import button and paste in the hex output and enter.