The GameCube is the successor to the aging, cartridge-based Nintendo 64 game console and the predecessor to the Wii. The GameCube (officially called as the Nintendo GameCube and often abbreviated as GC or GCN) is a video game console system developed by Nintendo, for which several Sonic the Hedgehog games were released. There are no reported problems with this title. To fix, migrate controls to use separate physical controllers. If a physical controller is set to emulate both a GameCube Controller and a Wii Remote concurrently, it will operate both devices at the same time.
Sonic Unleashed is capable of using both GameCube controllers and Wii Remotes.