Yep, I will respond to Issues and Pull requests.
Duck Jumper (AKA as "Cyber Fowl Hopper" in parts of Europe, and simply "Jump!! With Duck" in Japan) was originally released in February 1987 for the EXTRAGAME 20-in-1 home console. Due to extremely limited graphics, sound, and game play it was taken off of the market in March 1987 and promptly disposed of in a Wyoming landfill.
Currently you'll need the love2d runtime. Go to love2d.org and download the package for your particular system. Double-click duck.love to run the game.