I am the coder for The Budgie Birds. I prefer to use pure Java when I'm making my games. However, I've been transitioning into Unity for the endless features they offer and decent control I can maintain. I LOVE to make games that make people think but sometimes I just make silly games that are still fun.
For anyone wanting to showcase/let's play/record/stream in any fashion any of the games I have made: "Go for it! Let me know about the vid and if I like it I'll ask if I can put it in the description of the game. Win-win!"
For anyone wanting to do fanart of anything, ask ToonTeamJ. They're the artist for basically all of my games. I have no problem with it at all, it shows love for the game and its characters. If ToonTeamJ doesn't get back to you within a month, on my word: "Go for it!!! But let me see when you're done cause I love that stuff! Again, if you're OK with it I might add it to the game's description page."
All other requests or more information: check out the BudgieBirds official website!