There is no Kayacan the Hedgehog, sounds like a fan character to me
Shadow - Beat Heroes story
Just beat story mode with both the heroes and Babylon rouges.
No, it is a game in the Sonic the Hedgehog©series.
As of 2011: Sonic the Hedgehog Sonic the Hedgehog 2 Sonic the Hedgehog CD Sonic Spinball Sonic the Hedgehog 3 Sonic & Knuckles Sonic Labyrinth Sonic 3D Blast (Flickie's Island) Sonic R Sonic Adventure Sonic Pocket Adventure Sonic Shuffle Sonic Adventure 2 Sonic Advance Sonic Advance 2 Sonic Battle Sonic Heroes Sonic Advance 3 Shadow the Hedgehog Sonic Rush Sonic Riders Sonic the Hedgehog (2006) Sonic and the Secret Rings Sonic Riders Zero Gravity Sonic Chronicles: The Dark Brotherhood Sonic Unleashed Sonic and the Black Knight Sonic the Hedgehog 4: Episode 1 Sonic Free Riders Sonic Colours Sonic Generations
Silver the Hedgehog is a fictional computer character first introduced in the Sonic the Hedgehog series. Games that Silver the Hedgehog has appeared in include: Sonic the Hedgehog, Sonic Rivals, Sonic Rivals 2, Sonic and the Secret Rings, Sonic and the Black Knight, Sonic Riders: Zero Gravity, Sonic Free Riders, Mario and Sonic at the Olympic Games and Sonic Generations.
Its adventures of sonic the hedgehog, sonic x, and others like that
no
No.
Silver is not in Sonic Riders. However, he is unlockable in Sonic Riders: Zero Gravity by completing the Babylon story.
Shadow the hedgehog, Sonic Riders, Sonic Riders: Zero Gravity, Sonic the hedgehog (2006), Sonic Rivals, Sonic Rivals 2, Mario and Sonic at the Olympic Games, Mario and Sonic at the Winter Olympic games, Sonic and the Secret Rings (multiplayer character) Sonic and the Black Knight (As Lancelot) and soon to be Sonic Colours on DS.
Finish Crisis City to unlock Shadow the Hedgehog's story.
Complete Sonic's Crisis City.