>>37136076>How do they make a hard mode though?Well, first of all they need to make better world design. Most importantly, the games need larger dungeons or stretches in which you can't just go back and heal in less than a minute.
Then, give trainers better teams, better AI, maybe a slightly higher levels (although that's not really necessary). Will that make each individual trainer more difficult to beat? Not necessarily, but in a cave, or a big forest, or whatever, they will start wearing you out, making each following battle a little tougher.
Reduce the prize money (and maybe exp) you get from trainer battles (and wild battles, in the case of exp). Keep the player from easily acquiring more items that they will need, so he has to keep resource management into account. This also tests the player's "stamina". Do away with these limitations after you beat the champion so as not to fuck up post game grinding.
Yes, there is nothing keeping the player from overleveling. That's just part of RPG's. Very few, if any at all, keep the player from being able to reach max levels in the first area they are able to grind. But that's the player choice (and hence why these are called role playing games) and you can implement things to discourage players from doing so without straight out taking that liberty away from them.