Kay my issues with HG, although a lot have been probably stated idc.
- The grass, ew.
- The little holes in the grass.
- The fact that the dowsing machine is... idk, I preferred itemfinder though probably because I misplaced my stylus and I have to use my finger.
- No grass patch before Sudowoodo tree.
- The gyms, omg, I hate the gyms so much, they're so hard to get through, (Whitney, Bugsy, Pryce, Claire, Blue, Surge -- yes I'm aware it's the same but I hate it and Erika being examples of this.)
- The fact that you need so many repels because there are just so many wild pkmn.
- The pokeflute channel would be so much better if it was one of the 4 options and you didn't have to search for it.
- Suicune's location and the fact that the clear bell has lost its importance.
- Ho-Oh's tower thingie was a disappointment, although Lugia's cave thing was omfg awesome.
- The fact that in certain places Pokemon just repeat emotions when talking to them.
- Apricorns being everywhere as opposed to berries.
- The photographer, it's interesting to find him... just kind of annoying.
- Lage of Rage, omg ruined imo. I hate how it's like a water puzzle... I dunno, I preferred how it looked before.
- Battle Frontier - haven't played games with the BF in it before and to me it's kinda... pointless, I miss the battle tower thing it had in the past.
- Safari Zone - I like the area leading up to it, but it still seems kinda far away and the Pokemon are harder to catch than in other Safari Zone's.
- Too many rare candies, I dunno, I love rare candies but it seemed as if there were a lot more than there were in other games. I mean, somewhere you could even buy them (Or was that nuggets? Probably both.) Yeah, too many nuggets too.
- Ilex Forest... just seemed like updated graphics, not much has changed besides the stupid stick thing, much easier in the past.
- Underleveled wild Pokemon.
- Mt Silver is weird, it reminds me of Sinnoh by having the snow and such, original Mt Silver was better.
- The inclusion of Sinnoh Pokemon. I would've preferred Johto/Kanto only Pokemon, but meh. I have nothing against Hoenn Pokemon though.
- Victory Road... seems kinda small when compared to Hoenn's.
- An Indigo Plateau like R/B/Y's would've been nice.
- Would've been nice if this game was set AFTER Gold/Silver, so that Cinnabar could've been remade, oh well
- Saffron, meh, not much has changed there, could've improved on it.
I dunno, overall for me it just lacks the nostalgia/expectations that would've made them better for me. It was kinda hard too, so meh. I prefer the original Gold/Crystal to HG. I guess I just expected too much of Game Freak. I could find more issues with it, but that's based purely on nostalgia reasons, the ones I stated... aren't as much.
Though I love Voltorb Flip.