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 testing reactive jump and dash timing for distance.
Fruit Ninja leans Execution (Pure Mechanics); Robot Unicorn Attack leans Execution (Pure Mechanics).
Robot Unicorn Attack leans a little harder on execution, though the gap is small.
Fruit Ninja
Swipe accuracy and combo timing
Robot Unicorn Attack
Precise jump and dash timing decides every run
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
Robot Unicorn Attack
Solo endless runner, no opponent
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
Robot Unicorn Attack
Procedural obstacle generation adds reaction demand
Robot Unicorn Attack leans a little harder on optimization, though the gap is small.
Fruit Ninja
Combo and crit systems are shallow but real
Robot Unicorn Attack
Limited strategy beyond reactive timing
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.