head to head
Neither is simply harder - they are hard in different places. Brawlhalla demands more reads; Call of Duty: Black Ops demands more variance.

Execution · Competitive PvP
A platform fighter built on tight inputs and dodge-read mind games.

Execution · Competitive PvP
Cold War-era shooter pairing twitch multiplayer with the cult Zombies mode.
Brawlhalla leans Execution (Competitive PvP); Call of Duty: Black Ops leans Execution (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Brawlhalla
Frame-tight inputs and recoveries decide stocks.
Call of Duty: Black Ops
Gunfights hinge on aim and reaction speed
Brawlhalla leans clearly harder on reads.
Brawlhalla
Adaptive opponents bait dodges and reads constantly.
Call of Duty: Black Ops
Reading human opponents' positioning and timing
Call of Duty: Black Ops leans clearly harder on variance.
Brawlhalla
Weapon spawns add minor randomness.
Call of Duty: Black Ops
Spawns, care packages, zombies RNG
Call of Duty: Black Ops leans a little harder on optimization, though the gap is small.
Brawlhalla
Matchup knowledge and stage control are learnable.
Call of Duty: Black Ops
Class builds, map control, zombies routing
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.