Originally Posted by Stormdancer94
Apparently, based on whichever starter you choose, it determines the game's difficulty level... I think that's just a rumour, but still, I always used Charmander, but Squirtle is good, since it can use Ice attacks at Blastoise stage, it can easily kill your rival's Pokemon.
I know what you are talking about. By that it only means that you'll have a tougher time with Charmander than you would with Squirtle or even more so, Bulbasaur. AI stays the same regardless of the starter.