"I'd like to ask for some help on a list I'm making for all the features that have been removed over the Generations."

Hi there guys. Title speaks for itself. I'm trying to focus on mostly good or at least generally liked features. Here is what I've got so far:Removed in Gen 2Walking with Pikachu (Brought back in Gen 4 though, and vastly improved)Removed in Gen 3Physical effect of the day/night cycle on overworld (Brought back in Gen 4)Removed in Gen 4???Removed in Gen 5Walking with PokemonGame Corner/Game Corner replacementUndergroundBall SealsSecret Bases (They returned later in Gen 6 though, and improved)Day/Night Music. Seasonal Music made an appearance however. (Returned in Gen 7)RadioRunning Shoes toggleRemoved in Gen 6Difficulty OptionsBattle Frontier (Bit iffy, since Gen 5 also didn't exactly have a Frontier, but it still had two other non-Battle tower clone facilities in Black Tower/White Treehollow and the PWT, so I'll let it slide)Proper Gym Leader rematches (Battle Chateau doesn’t count, the Leaders are super gimped with only 2 Pokemon)SeasonsGym Leader Final Pokemon MusicUnique Gym MusicGB Sounds removed in ORAS (Included here because it only makes sense for them to be in remakes. There would be no logical reason for them to be in Gen 5 or in XY)Hidden GrottoesJoin AvenuePhenomena (Dark Grass, Shaking grass, Rippling Water, Dust Clouds)Removed in Gen 7In-game National DexDex-NavHorde BattlesTriple and Rotation BattlesSuper TrainingSoaringO PowersPSSSecret BasesBikeGeneric Trainer class encounter themesThis is what I've got so far, but I'm probably missing some things, so please tell me anything I forgot. via /r/pokemon http://ift.tt/2ubwQCk