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

Execution · Pure Mechanics
A swipe-em-up arcade game where slicing accuracy against random fruit spawns is the whole skill.

Execution · Pure Mechanics
An endless runner where players slow and speed time to dodge obstacles.
Fruit Ninja leans Execution (Pure Mechanics); Time Surfer leans Execution (Pure Mechanics).
Time Surfer leans a little harder on execution, though the gap is small.
Fruit Ninja
Swipe accuracy and combo timing
Time Surfer
precise timing-based reflex dodging
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Fruit Ninja
No opponent
Time Surfer
no opponent, solo endless runner
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Fruit Ninja
Random fruit and bomb spawns
Time Surfer
procedurally generated obstacle patterns
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Fruit Ninja
Combo and crit systems are shallow but real
Time Surfer
minimal strategic depth beyond reflexes
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.