Wow.... Wooooooow... Woooooooooooooooooow...
I must say, I really enjoyed this flash. It makes a good statement about how dedicated gamers tend to move on to a sequel of a game even if (in my opinion) it isn't as good as the original, and it's shown in a way that is original and hilarious.
Aside from the two N64 cartridges having different mouth placements (OoT has it's mouth on the left side and MM has it's mouth on the top middle), I enjoyed the art style of the flash. It's good in a simplistic kind of way, but it's not overly simple.
Jon's voice work is always great (except when he provides voices for female characters), and this flash is no different.
Overall: I didn't find much to complain about, and I liked it so much that I watched it a couple more times. I'd recommend this to anybody who has played both Ocarina of Time and Majora's Mask or any gamer.
Keep it up, Jon! I look forward to seeing more of your work here on Newgrounds.