“Chara’s the villain” “Chara’s the good guy” or perhaps Chara is meant to reflect the player in a similar way to Flowey, maybe you being meant to project your own name onto them but them still having their own true name shows that you can be similar but never the same. Flowey can access the files and Chara can deliver killing blows (theoretically, since you don’t manually deliver the hits on Sans or Flowey in Genocide) but ultimately you have the most power and neither of them can do anything about it. Flowey mistakes you for Chara in every route and not just the genocide route and I think that’s important. Flowey and Chara and you all watch over Frisk’s adventure with at least some influence and I think that’s important too. Chara could’ve had Frisk’s story of fulfilling the Delta Rune but came at the wrong time. Flowey and Chara are both stuck in death while they watch you achieve the thing that they died trying to do because they tried it at the wrong time. “You are wracked in a perverted sentimentality” in Flowey never stopping his search for Chara and Chara always watching and you constantly coming back to this game. One of Undertale’s key messages is anti-completionism (cycle of nostalgia) and by continuing to come back and achieve/relive everything you can you are stuck in the same cycle as Flowey and Chara. Perverted sentimentality. You get it