FYI, the problem is that the games are trying to load a copy of jquery over http, but ifcomp.org is hosted on an https site.
Also: if you edit the index.html file for these games, you can find a line that says “animate:true”. Change it to “animate:false” and you won’t have to wait through the text-delay animations. Skipping the delay is particularly useful when replaying The Fifth Sunday a dozen times.