Zelda isn't a very original game and is generally considered either a Hydlide clone or the game Hydlide is ripping off, depending on the type of game enthusiast you are. They didn't copy the music from Hydlide because they stole it from a band (Deep Purple?). It's too bad that Golvelius was lumped in as a Zelda clone when it really isn't.
Smash Bros is just a side view-only Power Stone clone/battle royale game. If the idea was that a game featuring characters from a publisher's games is a genre of its own, they've been around since the Famicom days (Wai Wai World). Even Telenet has Nariagari Trendy on PC Engine and Saturn Bomberman has a large roster. But even if Snash Bros isn't very original either, just as Neutopia is a true Zelda clone, that Sony Smash Bros clone was totally trying to ape Smash Bros.
This seems like it was intended as a quick and easy video compared to what they seem to usually do, but an interesting topic would be showing the many games which do things famous games do while pre-dating them. It doesn't matter if Zelda was purposely copying other games or not, but it would be informative for casual game video watchers to learn about games like Adventure, Venture, AD&D Cloudy Mountain, etc which came earlier.
