Generation 2 (Gold, Silver, Crystal)
- Quality of Life Improvements - It cannot be overstated just how much better to play the Gen 2 games are, mainly due to some major quality of life refinements. For example, players now get significantly more item slots, which are automatically arranged by item type (items, Poke Balls, TM/HMs, key items), and you can set a key item to a shortcut with the select button rather than having to open the pack every time you want to equip it. PC management is also much less of a hassle, as Bill will phone you when your PC box is full and boxes can be arranged and re-arranged much more conveniently than in the past. In addition, so many elements of the game are much more refined compared to the previous generation, such as the battle sprites and the map design (compare the flat, boring and tedious to navigate Mt. Moon and Rock Tunnel with Dark Cave or Ice Path, and the fact that this is only a couple years removed from Red and Blue is very remarkable).
- Significant and Game-Changing New Features - More-so than any subsequent entry in the franchise, Gen 2 introduced many new features which have not only gone on to be series staples, but have also deepened the battling system and have provided entire new ways to play the game. The result is that, while Gen 1 now feels archaic to play, Gen 2 is just as much of a joy to play today as it was on release. There are just so many new and important features that I have to break them down further below:
- The most obvious new feature is the morning/day/night cycle, which makes the game constantly replayable throughout the day. It can be a little annoying to have to wait for that perfect Pokemon you want that's only available at night time, but it is a cool enough addition that it shouldn't be a hassle.
- The Special stat of the previous generation was also split into Special Attack and Special Defence, making Special-based Pokemon much more balanced.
- Held Items are a huge new addition to the series, to the point where an otherwise-competitive team would probably be considered nearly worthless without held items.
- Shinies were introduced here and were incredibly rare to acquire, especially compared to subsequent generations. This twist made the simple act of catching significantly deeper and more challenging, if you wanted it to be. To this day, there isn't really a feeling I get that's quite matched by a shiny encounter.
- Breeding was introduced in this generation, and provided a bedrock for hardcore players to let their inner-eugenicist shine and breed a perfect team. It was certainly in its rough stages at this point in the series, but it is really cool and handy and can help you get ahold of strong and/or shiny Pokemon at higher odds.
- New Typings Perfect the Balance - The new Dark and Steel typings were great additions, being introduced in order to balance out the type imbalances of the previous generation. In fact, you could definitely argue that their introduction in Gen 2 finally perfected the series' typing balance.
- Endgame Content - Generation 2 is lauded for also including the Kanto region from Gen 1 in the game, providing a whole additional mini-campaign once you have beaten the main game. It provides hours of meaningful additional content and even gives you a battle against the main character from the previous game at the end.
- Best Rival - The game's rival character, canonically known as "Silver", is easily the best rival in the entire franchise. While he starts out as an abrasive and abusive asshole (which alone is enough to make you want to beat him), he eventually grows and matures as he learns what it means to be a good trainer. No other rival before or since has been nearly as compelling as Silver and it's always a joy to take him on.
- New Pokemon - The new Pokemon added in this generation are all rock solid, design-wise I would consider it the best single generation of them all.