What game series should come out only once every videogame generation?

[Bursche]

Riachu said:

Bursche said:
I agree with Mario Party.

Final Fantasy should be only 1 per generation.

 

That will most likely be the case if you are just talking about the main series

 

 Maybe this generation, but previously the first ones in a generaton were the best, and started slipping. See FF11 and FF12 compared to FF10