Hobbyist / Tinkerer
These mini-games have been produced in my "spare time" and (at least for the first 5 posted) they were all built from coursework created by Ben Tristem. I have, however, endeavored to give each of them a bit of my own personal flair.
For example, for Sky Defender I created several hand-drawn assets and I tinkered with some "procedural music". For Block Smoker, I created a particle system "from scratch" (rendering several frames of smoke for an animated sprite) and I also used my own photography and my own music.