Best game to have never had a sequel/remake/spinoff/spiritual successor?

[AZWification]

baloofarsan said:

AZWification said:

Skies of Arcadia and Eternal Darkness are the only games that can think of right now!

I thought that the inclusion of a Arcadia-track in Sonic-All-Stars-Racing was a hint that there was something happening with the IP.

But Sega has a few IPs, with tracks in  Sonic-All-Stars-Racing, that they do not care about: Super Monkey Ball (perfect for Wii U), Panzer Dragoon, Jet Set Radio (perfect for Wii U), Shinobi, Billy Hatcher (perfect for Wii U)

Nah.. We might get a HD port of Skies of Arcadia, but that's not enough for me!