Ghost Valley 1
From the Super Mario Wiki
Ghost Valley 1 is the third course of the Mushroom Cup in Super Mario Kart, later reused as the third course of the Extra Mushroom Cup in Mario Kart: Super Circuit. It is an old bridge surrounded by Boos. It is the first ghost-related course in the Mario Kart series.
The course has limited guard edges, but bumping into a tile at the edge of the bridge will destroy it, allowing players to go through and fall off the stage. There are several jump lines on the track, the last one allowing the driver to cross a gap. Two other lines are placed directly before two Item Boxes which makes those only reachable by driving back or avoiding the jump lines with a Feather. There are some planks near the end that act as a shortcut. There are no guard edges. This area can only be accessed using a Feather.
Ghost Valley 1 is the third track in the Extra Mushroom Cup. It uses the background from Boo Lake. It is pretty much the same as its SNES counterpart, although the two small bouncy pads before the two lone item boxes and the legs to hold the track up are removed. The shortcut also returns, despite the Feather's absence.
Ghost Valley 1 reappears in Mario Kart Tour, being one of the few retro courses to not also appear in Mario Kart 7. It is also the only Super Mario Kart course in the game to have not previously appeared as a retro course since Mario Kart: Super Circuit. The shortcut near the end is blocked by a cutout of Boos.
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