Excitebike is underappreciated. It has a learning curve but if you get into it you will see that it's still a very fun game even today. The physics, while simplistic by modern standards, are actually pretty advanced for the time, and the depth of gameplay you can achieve with simply tilting the bike forward and back is pretty amazing. Then there is the influence it had on Super Mario Bros. One of the best on the NES.Sorry to tangent a bit, but I want to draw some attention briefly toward one of the other picks I made on my roster - Excitebiker.
How do we feel about that character? As far as "retro" or surprise picks go, are there any other characters you think may be in higher standing for consideration? Being such a striking idea that Sakurai thought of so long ago, I wonder how attached he was to the concept that he might want to revisit 20 years later now that it's more feasible and not as weird. Takamaru still comes up often, but I wonder if Sakurai has changed his mind about that too. Personally I see Excitebiker more in the ROB or Duck Hunt camp rather than the Icies or Pit camp of reimagination, the latter which Takamaru is more suited for.
I feel like Excitebike is a game in high standing at Nintendo, enough to have actual sequels and be referenced all the time in games like Mario Kart and WarioWare. That might not directly mean anything to Sakurai, but it probably has kept the series present in his mind compared to some other forgotten IPs and icons. Very similar to Duck Hunt, in my opinion. And the originality factor writes itself, Wario Bike withstanding... that's just one move anyway. I see Excitebiker slotting in perfectly as another wonderfully awkward surprise character.
It's disappointing that so many have dismissed Excitebiker, in many cases simply because of the existence of Mach Rider. Mach Rider's potential tools don't make him a more optimal moveset candidate, just a different one. If anything, an Excitebiker moveset just may turn out better with more cohesive focus on the unique physics and maneuvers that the biker archetype brings to the table. Clearly Excitebiker would be fully fixated on actually biking and stunting, and personality-wise the character is more of a trickster and a showman than the sci-fi-hero-type Mach Rider, which would produce a completely different dynamic.
Anyway, the leaks clearly had something to do with it, but I just don't know why we've reached this point where Mach Rider is universally accepted as the cool kid on the block, whereas Excitebiker is so often left in the dust. Especially when the latter, if we're being honest, has source material that was miles more significant to its era and to Nintendo broadly.