Nintendo trivia:
The recorder found in the original Legend of Zelda game is identical to the warp whistles in Super Mario Bros. 3, and have similar look, sound, and ability; the Zelda recorder warps you to a random completed dungeon, and the Mario's warp whistles warp him to another world.
Nintendo trivia:
To date, Mario Kart 64's Rainbow Road is the only one with walls completely covering both sides of the track. On another note, Super Mario Kart's Rainbow Road is the only one with absolutely no walls.