>>27036300The games are for kids. If you want it difficult, it's very easy to make it difficult for yourself. Do a Nuzlocke run.BAM! Now it's difficult. If that's still too easy, do what I do and add new rules. X and Y are amazing for Nuzlockes do to the high variety of different pokemon in the grasses, but it has the EXP share, so a person rule is "no EXP share".
Don't like Nuzlocke rules? Make your own rules. "Once you beat a gym leader, retire your best Pokemon and cycle a weaker pokemon from your PC into the team". "No STAB moves". "No status effect moves".
It isn't hard to make the games hard with a bit of self control.