Ben Hurst claimed that only 40 episodes of Sonic the Hedgehog were conceived and produced .
While it was once believed that 65 episodes were made of which only 40 aired , Ben Hurst , a main writer from Sonic the Hedgehog ( dubbed SatAM by fans ) , who was also involved in Sonic Underground 's production , stated in a chat at the Sonic Amateur Games Expo 2008 that only 40 were produced.
Sonic Underground