Wii

The Wii is a video game console made by Nintendo in 2006, for which ten Sonic the Hedgehog series games were available, the first being Sonic and the Secret Rings. Its successor is the Wii U.

Games hosted

 * Sonic and the Secret Rings, 2007
 * Mario & Sonic at the Olympic Games, 2007
 * SEGA Superstars Tennis, 2008
 * Sonic Riders Zero Gravity, 2008
 * Sonic Unleashed, 2008
 * Super Smash Bros. Brawl, 2008
 * Sonic and the Black Knight, 2009
 * Mario & Sonic at the Olympic Winter Games, 2009
 * Sonic & SEGA All-Stars Racing, 2010
 * Sonic the Hedgehog 4 (Wii Ware), 2010
 * Sonic Colors, 2010
 * Mario & Sonic at the London 2012 Olympic Games, 2011

Virtual Console
The Virtual Console is an internet download service for the Wii. It provides games from past systems as well as original games known as WiiWare. Points must be purchased either online through the Shop Channel or through cards acquired at local retailers. In the United States, one point is equal to one cent. You can insert a credit card and use it buy games as well.

Games Hosted
Sega Master System
 * Sonic the Hedgehog
 * Sonic the Hedgehog 2
 * Sonic Chaos

Sega Mega Drive (SEGA Genesis)
 * Dr. Robotnik's Mean Bean Machine
 * Sonic 3D Blast
 * Sonic Spinball
 * Sonic the Hedgehog
 * Sonic the Hedgehog 2
 * Sonic the Hedgehog 3
 * Sonic & Knuckles

Sonic's Cameo appearances on Wii

 * Samba De Amigo Wii
 * The Simpsons Game
 * The Incredible Hulk

Characters introduced

 * Shahra the Ring Genie
 * Erazor Djinn
 * Sinbad the Sailor
 * Ali Baba
 * King Shahryār
 * Alf-Layla-wa-Layla
 * Darkspine Sonic
 * SCR-GP
 * SCR-HD
 * Chip
 * Dark Gaia
 * Professor Pickle
 * Merlina the Sorceress
 * Black Knight
 * Sir Lancelot
 * Sir Gawain
 * Sir Percival
 * Sir Galahad
 * Sir Lamorak
 * Caliburn the Sword
 * Wisps
 * Yacker
 * Orbot
 * Cubot

Trivia

 * On the Wii, Sonic makes 5 (7 if you count his cameo in Samba De Amigo Wii and Super Smash Bros. Brawl) crossover appearances and 6 appearances in Sonic games.
 * Sonic the Hedgehog 4: Episode 1 is by far the only Sonic game for the Wii Ware, as its sequel, Sonic the Hedgehog 4: Episode 2 released on other systems besides WiiWare.