Apologies for not bringing this up myself outside of Twitter (stuff like this makes for good snark bait

) but I might as well point out a few things I noticed:
The game about 1:17:30 is a direct ripoff of an old Flash game I forgot the name of with very similar looking (if not the same) graphics
The song at 1:18:30 was clearly made with Music 2000 in like 5 minutes
One of the sound effects in the skiing game 1:47:30 in is literally taken from Windows 3.1 of all things
The shooting game 2:07:00 in is also on the NJ Pocket, albeit with different music I think
The music 2:14:30 in was also ripped off for Magic Jewelry, but I don't remember what the song was called off-hand >_<
I'm also willing to believe that those pictures in the vaguely Qix-esque games are just ripped off from random shows or whatever. :v