HeartGold/SoulSilver are frequently regarded as the series' pinnacle, thanks to an incredibly expansive post-game (and your pokemon follow you!).AgOkami wrote: ↑December 9th, 2018, 7:16 amPokemon Soul Silver and Ultra Moon.
I'm making a living dex with (breedable) battle ready pokemon fire red - all evolution stages - in moon balls please kill me. (Or better: anyone got moon ball starters? Apart from Bulbasaur and Charmander which I already have.)
USUM is good, but it's a little controversial due to its slow start and hand-holding. If you're looking for a challenge, it has some of the most difficult fights in the series in my opinion.
Unfortunately, despite the fact that HGSS is an old game, it still sells for full price for some reason. In my opinion, HGSS is a more important play than USUM.