Indeed, I'm as confused as you are. If anything, this makes me think someone should take a look at his other projects and see if they match anything out there

Indeed, I'm as confused as you are. If anything, this makes me think someone should take a look at his other projects and see if they match anything out there - maybe you're not his first victim. It looks like he unfortunately thought that changing some variable names (but leaving the .png / resource file names the same, the code structure the same, etc.) was enough for him to claim the code to be his original work - and thus slap a license of his choice on it. Very wrong. You mentioned earlier that he has a donation link / button somewhere - that this might be for profit to a certain extent via donations? I can't seem to find that on this site.