Bowser Castle 1

Bowser Castle 1 (BC1) is Super Mario Kart's fourth course, and Mushroom Cup's fourth course.

5lap NBT

Super Mario Kart courses
Mushroom Cup: Mario Circuit 1 \| Donut Plains 1 \| Ghost Valley 1 \| Bowser Castle 1 \| Mario Circuit 2
Flower Cup: Choco Island 1 \| Ghost Valley 2 \| Donut Plains 2 \| Bowser Castle 2 \| Mario Circuit 3
Star Cup: Koopa Beach 1 \| Choco Island 2 \| Vanilla Lake 1 \| Bowser Castle 3 \| Mario Circuit 4
Special Cup: Donut Plains 3 \| Koopa Beach 2 \| Ghost Valley 3 \| Vanilla Lake 2 \| Rainbow Road