in case you didn't know a a demake is the opposite of a remake a game from a more modern video game system remade for an older video game system an example is the final fantasy 7 demake for the NES

Final Fantasy VII (NES video game) - Wikipedia

Video game remake - Wikipedia

If you could have one 7th or 8th generation (or as many as you like) video game remade to the 6th generation specs of the dreamcast hardware what game would be it ?