head to head
Midnight Ghost Hunt asks more than Agar.io, and the gap is reads.

Reads · Competitive PvP
A browser arena where your cell eats smaller players and flees bigger ones.

Reads · Pure Mind Games
An asymmetric hide-and-seek multiplayer game built on predicting human hiders and hunters.
Agar.io leans Reads (Competitive PvP); Midnight Ghost Hunt leans Reads (Pure Mind Games).
Midnight Ghost Hunt leans a little harder on execution, though the gap is small.
Agar.io
Mouse steering and split timing
Midnight Ghost Hunt
Shooting and chasing need moderate aim
Midnight Ghost Hunt leans clearly harder on reads.
Agar.io
Baiting and predicting human blobs decides fights
Midnight Ghost Hunt
Hide-and-seek versus humans is constant mutual prediction
Midnight Ghost Hunt leans a little harder on variance, though the gap is small.
Agar.io
Spawn locations and lobby makeup random
Midnight Ghost Hunt
Possessable object hiding spots add hidden information
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Agar.io
Split-merge math is shallow but real
Midnight Ghost Hunt
Map knowledge and ability use reward some planning
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.