I haven't had the problem with ghost npcs that others have had, luckily
This game is very fun, one thing I will say is that at least for me none of the npcs are ever that pink or orange color, so it's very easy to find the color changing npc.
Part of me wishes it was a bit more challenging though. I found that I never even had to worry about the timing because I could figure out my target very fast, even with the ID hint there just weren't enough NPCs to make it hard to find or keep track of the target
I do genuinely like the idea and mechanics here :)