There are a few different values that are used:
Ghosting:
0xC0: Fire Emblem and the Sacred Stones, F-Zero: Maximum Velocity, Mario vs. Donkey Kong, The Legend of Zelda: The Minish Cap
0x90: Kirby and the Amazing Mirror, Mario Kart: Super Circuit, Metroid Fusion, Wario Land 4, WarioWare, Inc...