Some games age better than others. You see a lot of game developers and animators still using 8-bit art in modern games, while plenty of fans are excited to buy and re-buy titles from the 16-bit era. Then you have Minecraft, one of the most profitable indie PC games ever, which looks like something from the PS1 era -- it can even run on a DS!
Sadly, games from the late Dreamcast/early PS2 era don't tend to age as well. While sprite-based graphics have an aesthetic all their own, and low-polygon-count CG graphics have an abstract, almost Cubist integrity to them, most Dreamcast games used the same "realistic" style found on the PS3/360 today. When these now-10-plus-year-old games try to go toe-to-toe with new current-generation games, it's not always pretty.
That's only where the trouble begins for Resident Evil Code: Veronica X HD.