I have been working on a game for this jam in Java and I just noticed that Java games are not allowed anymore, because "the output size total is well over 3MB". I don't know what you mean by output size, but my game is not 'well over 3MB'. If you mean the size of the jar file extracted, that is not larger than 1.44MB either.
Please elaborate what you mean, because it would not be fun if all my hard work would go to waste.