Infinty Ward : Oh lets create
call of duty 4
Childrens : OH YAY
CALL OF DUTY 4 <33333333333333
Infinity Ward : now lets create World at War and MW2
People with sense : Wow, this is shit.
Childrens : OH MY GOD YAYYYYYYYYYYYYYYYYYYYYYYYYYY
-Makes lots of money anyway-
And the same for Halo, with Halo 1 being amazing, and Halo Reach being downright shit.
Behold, the call of halo effect