head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.

Execution · Competitive PvP
A shallow novelty wrestler testing little beyond basic timing and weapon grabs.

Execution · Competitive PvP
Simple-input arena fighting decided by baiting human defensive resources.
Celebrity Deathmatch leans Execution (Competitive PvP); Naruto Shippuden: Ultimate Ninja Storm Revolution 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.
Celebrity Deathmatch
Button timing wins matches but the ceiling is low
Naruto Shippuden: Ultimate Ninja Storm Revolution
Combo and counter timing on intentionally simple inputs
Naruto Shippuden: Ultimate Ninja Storm Revolution leans a little harder on reads, though the gap is small.
Celebrity Deathmatch
A couch opponent can be conditioned, shallowly
Naruto Shippuden: Ultimate Ninja Storm Revolution
Baiting a human's substitutions and guard breaks matters
Celebrity Deathmatch leans a little harder on variance, though the gap is small.
Celebrity Deathmatch
Random weapon drops shake up the ring
Naruto Shippuden: Ultimate Ninja Storm Revolution
Fully visible fights with nothing hidden
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Celebrity Deathmatch
Learning each celebrity's finisher exhausts the depth fast
Naruto Shippuden: Ultimate Ninja Storm Revolution
Team and awakening type picks are a shallow solvable layer
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.
full breakdown
Celebrity Deathmatch →
full breakdown
Naruto Shippuden: Ultimate Ninja Storm Revolution →