>>713312103 (OP)Worst 3D game tracks overall, but best Rainbow Road. Most of them were just really bland to go through, and basically all the ones that got turned into retro courses in future games were vast improvements than how they originally were on the 3DS.
While it introduced the gliders and underwater segments, it failed to do much at all interesting with them. The Rock Rock Mountain glider segment was memorable, but that was about it. Underwater was neat visually, but otherwise outright sucked and I won't miss it.
The first-person perspective was genuinely nifty though. I didn't always play using it, but it added some playstyle variety that was welcome.