How many Sonic games have been made so far

Sonic has appeared in around 60 games for various consoles or the PC, as a playable character, or as a central character in the story of the game. Among these most have Sonic's name in the title. Some of these have only been available in Japan, and a few are arcade games.
Sonic has also cameoed in several games and appeared in various games for cell phones.

According to Game Informer magazine the number of games where he has cameoed is over 150