I have no idea what happened here, this is a really awful remake in my opinion. The underlying game is still fairly intact and nothing mechanically is completely ruined so it had the bare minimum going for it as a remake. There are some glitches and sound issues here and there but nothing experience ruining. I think this game just sucks because diamond and pearl NEEDED the remake treatment so badly, those games haven't aged perfectly and a remake was a perfect opportunity to bring gen 4 into the modern era. BDSP offers basically no improvements over the originals, it's the first remake to keep the exact same dex as the original game. It "fixes" issues like HMs by literally just doing them automatically for you which doesn't feel like I'm really even playing the game and just feels like a band aid solution. I do genuinely hate how this game looks though, all other issues aside it is just a very ugly version of diamond and pearl. Translating the sprites literally into 3D models does not work when spritework is an entirely different art form that relies a lot on abstraction for things to appear realistic. Like a bunch of copy pasted tree sprites looks normal in a sprite based game because we understand that that is what a forest looks like and if it weren't for the limitations of the hardware that would look like a proper forest. BDSP now just does the exact same thing with 3D models and just ends up looking really lazy. Another massive issue I have is the fact that you have full analogue movement but they didn't change the map layout at all, the game was not designed for this in the slightest and it results in you crashing into box colliders everywhere and constantly getting snagged on edges. I'd never willingly play this game over the originals, especially when there is a definitive version of those games which BDSP undid literally all of the changes from btw.