>>19918525Coming from Pokemon Ruby and Sapphire, which had a fast surf speed but lots of water routes, to Diamond and Pearl, which had a lot fewer water routes but a really slow surf speed
Slower battles showcased things like better battle animations over Ruby and Sapphire but battles tended to drag on
The entire Elite Four was a mess. Both of the Hoenn early route bugs, Calm Mind Bronzong with physical attacks, Flint's entire team
There were new Pokemon you weren't even able to collect until after the main game's completion, and one was even locked out if you didn't transfer up from Gen 3 games (Tangrowth)