Higher Difficulty in Games
Out of curiosity, what is the best way you've seen a game implement a higher difficulty? I don't see many games do much more than the usual. The enemies usually just have higher HP, they oneshot you now, they slowly regenerate health, they have a different color, maybe a minor change in attack pattern, etc. For me, it usually just feels more tedious and time-consuming (i.e. every fight that takes 7 minutes now takes 30 minutes, and if you make a mistake or misinput, you have to start the fight all over again). Other than implementing better AI to enemies so that they can adapt to your playstyle, I can't imagine much more they can do.