Interesting hack, surprised they changed the weapon. I notice the ghost sprite and the whip/sword projectile were upgraded as well. I've always thought the game was ripe for a fan remake/upgrade but alas I do not have the skills, probably no one who is a big enough fan of the game does.
I've felt for a while that the real problem with the game's graphics is one of detail and color in the backgrounds, rather than particular sprites.
If they had been able to make all of those large blank spaces on the walls black rather than white (like they did in a lot of areas in the NES trilogy) it would provoke the proper sense of shadowed night, rather than just empty space. This I think is what causes most of the gripes with the graphics, often attributed to laziness but which I chalk up to lack of time and space. CVA put in so much detail it seemed to slow the game down, BR had a sweet spot of just enough detail, and with Legends they weren't able to devote enough time or space to duplicate BR's graphical feat.