>>23488693HGSS, "modern" pleasing graphics and good post game content, the level curve is still there but the rest makes for it. It is also a two region based game and basically gives you an free experience of how could be the other previous generation games based on these two regions be, even if the fourth gen basically fixed every lack of the previous ones, but a more limited Pokedex and game mechanics can be also considered a positive challenge. Kanto gives you a hint on how it would be replaed in the third generation games, and FRLG would hinto you at RSE. While the HGSS set and graphics can lead you to similar games like DPP, specifically Platinum.