I_Like_Stuffs_ posted...Pokemon games were never challenging during main game. Lol
I think the problem with Pokémon games is that the difficult depends solely on how the player plays. For example, the way I play involves a rotation leveling system, no grinding on wild encounters, hardly any use of items, a well-balanced team that can one point or another learn all HMs, and no use of legendaries (although that is there to change very recently, but only one per team). Playing this this way not only makes things interesting, but also very difficult.
But the problem is that it's only difficult due to the way I play. If I chose to max out my starter and use a bunch of HM slaves (I did something like this on my very first Pokémon playthrough in Gold), most of the game would become laughably easy.
I hope that they take this game's difficulty levels and expand on it even more. I think having more selectable difficulty levels would satisfy all players. Challenge Mode is nice, but there's still people that can blitz through it. I would prefer something at the level of Pokemon Stadium 2 (maybe for the hardest difficulty level).
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You know you read too much when you dream about flying books.