Sega Technical Institute
... that the Sega Technical Institute released four Sonic the Hedgehog games in three years?
... that the <b id="mwzg"><a href="./Sega_Technical_Institute" id="mwzw" rel="mw:WikiLink" title="Sega Technical Institute">Sega Technical Institute</a></b> released four <i id="mw0A"><a href="./Sonic_the_Hedgehog" id="mw0Q" rel="mw:WikiLink" title="Sonic the Hedgehog">Sonic the Hedgehog</a></i> games in three years?