== Pikachu lies, more lies and damn lies! == 

 This was covered before here, but it seems someone has changed it yet again.  Although Pikachu has appeared in every *major* Pokémon game so far, he (it?) hasn't appeared "in every Pokémon video game made to date".  As the aforementioned link... mentions... There were several e-Reader and Pokémon mini games that did not include Pikachu.