Really I'm giving a lot of full 5 stars rating. How can there be so many awesome games? I have participated in GMTK and Brackey's jams this year and I have to say, the entries to this one are by far the best ones
i think it is because of this gamejam`s format, this really is the best format... being able to work a limited, reasonable amount of hours within a certain period allows the creative juices to flow much better and you actually can get some sleep
Also not focusing on the art, and letting it inspire you, I guess it helps a lot programmer folks (like me) to really concentrate on the experience and relying oh the existing (and super good) sprites. I definitely agree with you that the quality is quite high, lots of very cool games.