Either way, that is still plagiarism, since a) you didn't credit Hobson-TV anywhere (your project wasn't even a remix!) and b) it is still his game which was created over a YEAR BEFORE THE JAM!
Yes, that's why he didn't remix it. This kind of behavior is unacceptable. He went back and have Hobson-TV credit, but there's no way in hell he got permission to post it anyways.